Replace it with one that has casting number 8685550 (GM part number 8685549), which is a much stronger piece. See more ideas about valve, body, transmission. The revised GM sun shell rarely fails and if it does, it's most likely to strip the teeth off the sun shell. The Transgo SK 4L60E corrects, prevents, and reduces problems associated with code 1870, trouble light & hard 1-2 shift performance. The new 4L60E featured a powertrain control module (PCM) which is able to control shifts using the feedback provided by the throttle position sensor (TPS), vehicle speed sensor (VSS), and other sensors. Now, let’s dive in: The 4L60E mods we have outlined above can ensure that whether you are a builder or a car fanatic with some level of experience, you can increase the horsepower and torque capacity of your car. Corvette Servo - Good upgrade even without valve body stuff. This is a video of a THM-700-R4 Transmission. Discussion Starter • #1 • Aug 7, 2009 (Edited by Moderator) Got a P1870 in your '96? On a performance build, you should replace all the bushings. 4L65E/4L70E will have 5 pinion planetary housings and 13 vane oil pump rotor - internal parts will retrofit into the non-electronic 4L60 and early 700R4. Before the advent of the 4L60E transmission, car manufacturers had a bone of contention while striving to bring about a vehicle’s fuel economy. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The result can be quite rewarding starting from a higher level of performance, and reduction in fuel consumption. These aside, there are 4L60E mods that can make your car the dream ride you’ve envisioned and that is why we’ve outlined some upgrades which you can definitely count on to build a performance car with the toughest transmission. “The 4L60E came in GM vehicles starting in 1994,” commented Reed. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. 2.6 out of 5 stars 3. If the 4L60E has a major sore spot, it has to be its OE 3.06:1 First gear ratio. 9,190 Posts . Valve Body Layouts; Contact Product Support; Where to Buy ; More Parts Harley-Davidson ® Bearings & Rollers; Power Train Savers ® Ring Gears; Tools & Shop Equipment; Transfer Case Parts; GM 4L60E Performance Transmission Upgrades. The best shell is the "BEAST" from SPX, they are nearly unbreakable. Jun 4, 2015 - Information on GM's 4L60E Transmission Valve Body. Separator plate orifices are precisely-sized holes that restrict fluid flow, reducing the speed of the oil in a given circuit. Then they remain on throughout the entire time you are driving forward. These cookies ensure basic functionalities and security features of the website, anonymously. Always replace the rear stator bushing since it is the sealing point for lubrication. The valve and sleeve can be replaced easily during a routine service of the transmission for around $50. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. The thin steel plates will distort and burn in high power situations, so stay away from them. This website uses cookies to improve your experience while you navigate through the website. It also fixes harmonic bounce that wears out pump and valves and causes shuttle shifts. These 4L60E transmissions are meant to be retrofitted into a hot rod application. 2. Drop-in Pressure Regulator Valve Fits 1993-15 4L60E, 4L65E, 4L70E 4L60E-3. Las Vegas Warehouse; Shop By Category; Allison Transmission Parts . These need an upgrade when putting more than ~300 horsepower through a 4L60E: Here are some areas you should consider when rebuilding a 4L60E: Pump: Pumps for the 4L60E can be found in 10 vane and 13 vane versions. Keep the original front planet and ring gear, they have proven to be reliable in high power applications. See the ATSG manual for more information. The part was very well packaged. This hole prevents any possibility of a centrifugal apply of the clutches. These input shafts include the stock 4L60E input shaft, a heavy-duty 4L60E input shaft (4L75E), and a hardened 4L60E input shaft. The torque converter … 5 Pinion planetary gears are great. Forward clutches: The forward clutches apply ONLY when you shift from neutral to drive. If your reverse drum is not perfectly straight, replace it. This cookie is set by GDPR Cookie Consent plugin. Art Carr racing sells a shell that can help keep it from stripping. The TransGo 4L60E SHIFT KIT® Valve Body Repair Kit fits 1993 to 2015 General Motors vehicles equipped with the 4L60E, 4L65E and 4L70E automatic transmission. 4L60E Valve Body Rebuild Instructions; 4L60E/4L65E Rebuild Kit Options; GM 4L60E Hardware Torque Specifcations; 4L60E Filter Style Guide; 4L80E Hardware Torque Specifications; Marine Transmission Information . WE SHIP WORLD WIDE; FITS 4L60E: '95-'00. Necessary cookies are absolutely essential for the website to function properly. It does not store any personal data. FREE Shipping by Amazon. These cookies will be stored in your browser only with your consent. The cookies is used to store the user consent for the cookies in the category "Necessary". Reprogramming Kit™ Manual Shift Control or Gear … Kevlar, the material bullet proof vest are made from, is very hard material which does not have the holding capacity of other, more conventional materials. Go to at least this sized servo upon a rebuild. By clicking “Accept”, you consent to the use of ALL the cookies. You will need to drill or widen some of Velvet Drive 71C/72C Torque Specs; Contact Us . Buy a 3-4 clutch set called the Raybestos Max Pac. 1 Upper Valve Body Gasket 1 Lower valve Body Gasket 1 Accumulator Delete Plate 6 Accumulator Delete Plate Mounting Bolts NOTE: THIS KIT MAY BE INSTALLED WITHOUT PERFORMING THE INTERNAL MODIFICATIONS HOWEVER IT IS RECOMMENDED THAT ALL MODIFICATIONS BE PERFORMED, IF THE TANSMISSION IS OUT OF THE VEHICLE, ESPECIALLY THE RELIEF OF THE SEAL DRAINBACK HOLE TO … 4L60E Transmission Valve body separator plate 1996-06 with improved design tempered steel for longer life and zinc plated to prevent rusting. Using our modifications or some valve body kits, the direct clutch issues are resolved and the 4L80E will generally be reliable up to the 750 HP/TQ range unless it’s a very heavy combination (over 4500 lbs) or using nitrous. As well, the pressure regulator valve (located under the reverse boost valve) should have two small 'flats' (~3/16" wide) ground on the second land - counting the lands from the end opposite that spring seat (or alternatively it should be replaced with an updated valve that has these flats). If you are making a lot of horsepower, you will have excessive slippage on the 1-2 shift with a Kevlar band. Another interesting valve body is the 4L60E valve body with engine braking . Since you are inside the transmission, replace all the electrical components (wiring, solenoids and switches) inside, especially the variable force motor solenoid (pressure control). The valve body did correct my hard engagment and 1-2 hard shifting as I expected, it also fixed my torque converter shutter when lock-up came on, witch I did not expect. GearStar Performance Transmission 132 N. Howard St, Akron, OH 44308 Email: [email protected] Sales & Info: 330-434-5216 Parts: 330-434-0104 Fax: 330-434-3634, © 2021 Gearstar Performance Transmissions. One way each of these can be made possible is through simple 4L60E performance transmission upgrades. Don't use Kevlar (see above) and don't use the Raybestos blue plate clutch set. In this case, placing the shifter in “D3” uses the over-run clutch in the first three gears and this helps to improve durability since the input sprag is not abused. On the feed side of clutch and band circuits, a restriction serves to control the gear application to prevent harshness. Instead, the number of vanes was changed to alter harmonics that caused the rotors to break up. Since bore wear is common in the 4L60/E, ALL circuits should be vacuum tested to identify leaks and some repairs may require reaming. 3/4 Load release spring assemblies: Remove and discard the 3/4 load release spring assemblies (5 small rectangular spring assemblies installed into the input housing, on the outside of the clutch pack). We'll take our transmission valvebody completely apart and check out every last valve before cleaning it all and reassembling. This cookie is set by GDPR Cookie Consent plugin. For hard parts, the Beast or the GM #24221190 revised sun shell kit has worked in most cases, however the sun shell is always going to be a concern. This should be considered a necessary procedure if you are transplanting one into your car. The sun shell: The sun shell is a very weak point in the 4L60E transmission. seven 3-4 clutch plates (six plates in a 4L60E). This kit has a new design isolator valve that works perfect in worn bore without requiring special tools or machining. This really improves the 2-3 shift. Only 1 left in stock - order soon. THIS AMERICAN-MADE TCC VALVE UPGRADE IS A GREAT VALUE FOR SERVICING A WORN 4L60E VALVE BODY; INSTALLATION INSTRUCTIONS INCLUDED; TECKPAK A74741Q; PHOTO SHOWS ACTUAL TCC VALVE UPGRADE; FREE SHIPPING TO ALL 50 U.S. STATES & PUERTO RICO! It includes components as well as modifications that recalibrates the entire accumulation system, clutch and band feed orifices. The latter could potentially lead to the 700R4 transmission being burnt. . So use stock clutches (such as the Borg Warner brand) for the forward and over run sections. 1-2 Accumulator Pistons, upgraded to aluminum, replace the OE plastic pistons that can cause premature clutch failure. Either way, these help by spreading the load among more pinions. Accordingly, highlighted below are some of performance upgrades for greater torque capacity which you can try out. 4.7 out of 5 stars 10. This is because its shift modulation was carried out with the use of a device known as the throttle valve (TV) cable. Damage can occur when wear in the boost sleeve causes insufficient line pressure in reverse. It is inexpensive to do (if you have the tools). Grinding flats on the outer spool of the regulator valve is another common modification that just … A quick glance at the band will show you where it burned on the edges and the middle is still new. 4L60E / 4L65E Updates; Oversize PR valves utilized to restore hydraulic integrity: TCC control valve, TCC regulator valve, and Actuator Feed Valve updated to address common wear problems. var menu=new menu.dd("menu"); If you use a teflon pump bushing, always apply Locktite® to it so that it cannot move forward. Now, the automatic transmission has come a long way because, for almost 40 years, car manufacturers have had their fair share of hassle while trying to design the best fuel economy engine. Superior Intermediate Super Servo - greater band holding power, much better 2-3 shifts, excellent 1-2 shifts, 35% more apply than 'Vette servo. The center will be really low and the two outside edges high. Control Valve Body Bleeding The foundation of a good unit is a tight, leak-free valve body that prevents pressure loss, conserves pump volume, keeps pressure stable and reduces fluid foaming in the pan area. Years later, the 700R4 was appended to 4L60 where the “4” denotes “four-speed”, “L” for “longitudinal installation,” and “6” for “light-to-medium-duty use and 6,000-pounds gross vehicle weight.” Despite this, the problem of shift programming which was evident in the 700R4 also reared its ugly head in the 4L60. This TransGo Reprogramming Kit includes valve body, servo, pump and accumulator components and modifications designed to deliver increased durability while providing firm shifts as well as a more efficient TCC apply. You can get a hardened input shaft, but it is rarely necessary. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. On the 3-4 clutches, clutch clearance should be kept to a minimum, aim for 0.010" (0.25mm). Some companies sell a 9 clutch set. lb to make it the 4L65E, they made the following changes: 5 pinion input and reverse gear sets (4L60E have 4 pinion gear sets), heat treated stator shaft splines, induction hardened turbine shaft splines, Always replace the sun shell. This is a common leakage problem with the 4L60E. Valve Body Bore End Plugs Fits 1993-15 4L60E, 4L65E, 4L70E 4L60E-ABUSE-BP. Common complaints on this transmission are TCC slip or shudder, code P1870 or P0894, harsh 1-2 shift, double bump shifts, 2-3 flare up, burnt 3-4 clutch plates as well as inconsistent pressure boost problems. If that isn’t feasible, then you’re better off letting a mechanic do the work for you. 4L60E-VBPLUGS. Pressure regulator & reverse boost valve and sleeve: The reverse boost valve and sleeve in the pump should be replaced every 40,000 miles (65,000km) to avoid damage to the transmission. 4L80E Modifications; 4L60E Valve Body Interchange; 4L60E with Harsh 1-2 Shift; 4T60E 2nd Gear Starts; Shifts 1-3; 4T60E Casting Changes; 4T60E Locks Up On 1-2 Shift; 4T60E Wiring Changes ; 4T60E Quad Driver Diagnosis; Ford. Their attempts are evident in the use of a computer-operated carburetors and even an electronic throttle body fuel injection in a bid to slow down fuel consumption. menu.init("menu","menuhover"); If you are rebuilding a 4L60E transmission, get a good manual, either a factory service manual, or the ATSG 4L60E guide. 00. Lastly, install the largest transmission cooler you can find and fit. It is very common that after you get done with one of this units, it will not want to upshift into 4th gear. The band is a wider and provides much better holding capacity than the Kevlar band. I recieved my 4l60e valve body a few weeks ago. Privacy Policy. It came with great information for installation including commonly made installation mistake corrections. We used a nut that was 0.270” thick Turning a 4L60E into a Manually Shifted Trans And since you can't replace the Torrington bearing that is inside the planetary gears, so you might as well replace the planetary gear. Shifts are crisper and the durability is very good with the ALTO band. The cookie is used to store the user consent for the cookies in the category "Other. Get it as soon as Mon, Mar 15. On the balance end of pressure regulating valves, a restrictive orifice is needed to dampen pressure pulses from the pump that would otherwise cause the valve to mo… You will get more clutch area, but with reduced the thickness of the steel plates. 2. 99. $199.00 $ 199. Below is a list of the weak points in a 4L60E transmission. Use a high-volume 13-element pump. The cookie is used to store the user consent for the cookies in the category "Analytics". Bands: Do not use Kevlar bands. Comes with instructions. Input drum: This is the weakest component of the 4L60E transmission. You also have the option to opt-out of these cookies. As a modification to a more modern transmission, TCI’s valve body is well equipped to go on a wider variety of vehicles. The 13 vane pump does not have a higher pump volume than the 10 vane pump. $259.99 $ 259. You should focus on the clutches that come on while at high torque is delivered from the engine, as those are the clutches that get burned up. Today, you can find the 4L60E transmissions in GM vehicles such as: Now that’s out of the way, let’s show you a step by step 4L60E transmission rebuild. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Valve Body Modification A simple 2-3 shift valve modification can bring about an improvement in durability, which is useful in performance driving . The drum tends to become dished over time, which doesn't allow the band to make full contact over the full width. This led to the development of 4L60E, a computer-controlled transmission that is still based on the 700R4. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The 4L60/E units don't have a converter regulator valve to control maximum charge pressure. The cookie is used to store the user consent for the cookies in the category "Performance". An upgraded input shaft becomes mandatory. Keep in mind that the goal is to increase the torque capacity to handle 400-500 horsepower. Our heavy duty 4L60E features heavy duty clutches and bands, valve body and lube modifications to provide a durable transmission ideal for light trucks and passenger cars. Tru-Flat stator qualification and machining process. This section will contain some rebuild tips and tricks on the 700R4 through 4L70E transmissions. Replace the boost valve with a Sonnax valve or TransGo, as these are frequently worn out. You may also want to get the heavier duty 'unbreakable' pump rings from TransGo. This cookie is set by GDPR Cookie Consent plugin. This weakness must be addressed in high power applications. These transmissions use METRIC fasteners exclusively. You also want to make sure that the splines on the stator are in good shape. '93-'94Number of Valve Body Solenoids4EPC SolenoidEarly3-2 Control SolenoidPWM (metal, white) 10-15 ΩTCC SolenoidNoneManual ValveNon-ventedCastingBottom: Open p The valve body usually comes off without much effort; it is often pushed off the separator plate because the direct accumulator and spring are compressed against the intermediate band servo piston. For example: 1. This part combines all of them into one plate that can be modified to fit your application. The Max Pac is an 8 clutch set (instead of 6 in the stock clutch). There are 13 bonded valve body plates for these units. Oversized Actuator Feed Limit Valve Fits 1993-18 4L60E, 4L65E, 4L70E, 4L75E 4L60E-PR. Knowing how and why this happens is the key to avoiding converter failure comebacks which are the product of a modification someone else performed. 2-3 Shift Valve Modifications Grind 0.270” off the stem of the 2-3 shift valve and install a 0.270” shim between the 2-3 shuttle valve and the solenoid B snout. Many major repairs of the 4L60E at around 50,000 plus miles are because of the boost valve and sleeve. 4L60E, 4L65E, 4L70E Bonded Separator Plate [IPN6-K33599] - 4L60E, 4L65E and 4L70E Universal Bonded Valve Body Separator Plate with Integral Screens 1998-Up. These cookies track visitors across websites and collect information to provide customized ads. modifications to the TCC regulator bore in the valve body which block the valve or add a different valve/spring combination cause line pressure to apply the converter clutch at double normal converter pressures. Reverse abuse bore (divider) plugs Fits 1993-15 4L60E, 4L65E, 4L70E 4L60E-AFL-OS. This cookie is set by GDPR Cookie Consent plugin. Use the 13 vane pump. Reverse drum: Put a straight edge across the band surface and make sure it is absolutely straight. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. There is a common modification for the 4L60-E TCC circuit that causes multiple problems, one of which is TCC friction delamination. (Updated 10/1/2019 by Sherlock9c1 because the old "stake or … Vidoe shows the wear on the valve body separator plate from the check balls. Shift Rite Transmissions replacement for 4L60E 03-08 4L65E M30 Sonnax Control Valvebody Transmission Shift Rite 4L60E. Broken input shafts are very unusual in the 4L60E, but the input shaft can strip out the aluminum shell. 1. How an Internal Combustion Spark-Ignition Engine Works, Setting the Cold Start and Warm-Up Enrichments, Input sprag (for extended high speed/load use in 4th). Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Get one like a car's radiator, called a 'plate' type cooler. This allows for faster 2-3 shifts and no burnt clutches. There are several 4L60E mods you can count on as a performance enthusiast, but no matter how tempting it may be to do it yourself, you need to ensure that you are a transmission builder who has garnered a lot of experience. 5 Transmission part . 1000 | 2000 | 2400 . Also, the Max Pac instruction require you to drill a 0.035" (0.9mm) hole at the back of the drum. Analytical cookies are used to understand how visitors interact with the website. The 700R4 was quite unique in comparison with previous models which were designed by the company. While the TV cable was able to modulate shift programming using throttle position and vehicle speed, it was still unable to bring about a perfect balance between fuel economy, driveability, and longevity. Never reuse casting number 8681725, as it is known to have durability problems. 16-Speed: More Gears Than You Can Shake Three Sticks At, 2011 Chevy Silverado – Project Blue Bomber Finale, A High-Performance Trans for Supercharged V-8s, A New Transmission for the ‘ol Sedan Delivery, Swapping a TH200 4R Into an Early Muscle Car for Easy Overdrive, Ford 4R70W Transmission History and Evolution, Top Signs It’s Time for a Transmission Rebuild, How to Choose the Right Performance Transmission Fluid, GM Transmission Recommendations for High Performance. This unit is rated to 450HP. I'd consider this … It is every car lover’s dream for their vehicle to be fast, optimally use fuel, and offer an acceptable level of performance. Blocking the valves doesn't repair the actuator feed limit oil or regulated apply loss from a worn valve bore. induction hardened turbine shaft splines. Low/reverse piston: This is the large piston at the rear of the transmission's internal components. Keep the transmission cool (maximum life occurs around 170°F) and it will last a long time. You can use the original GM from the 4L65E or you can use some aftermarket ones. These clutches do NOT come on and off while you are driving, and as a result they experience minimal wear. General Motors, for instance, devised the Turbo-Hydramatic 700R4 overdrive automatic transmission in 1982 as an upgrade to the TH350 three-speed automatic. The weak point above this power level becomes the OEM input shaft. This plate would need to be replaced. They work in tandem with valves and checkballs for timing purposes and to prevent valve fluctuation. If you are working with the transmission still in the vehicle, take precautions to catch the remaining fluid trapped above the valve body. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. 4L60E/4L65E Rebuilt Valve Body Plate and Harness Compatible with Chevy GMC 1996-2006 P1870. Be addressed in high power situations, so stay away from them quick glance at the band show. Called a 'plate ' type cooler such as the throttle valve ( TV ) cable the product a! As soon as Mon, Mar 15 'll take our transmission valvebody completely apart and check every... Servo - good upgrade even without valve body plate and Harness Compatible with Chevy GMC 1996-2006 P1870 set by cookie... Plate orifices are precisely-sized holes that restrict fluid flow, reducing the speed of website! Pressure in reverse Allison transmission Parts orifices are precisely-sized holes that restrict fluid flow, the! Been classified into a category as yet timing when a car 's radiator, called a 'plate type... Recalibrates the entire accumulation system, clutch clearance should be kept to a minimum, aim for 0.010 (... Still in the category `` Analytics '' posed, is irregularities in the category `` performance '' out. Or you can find and fit and check out every last valve before cleaning it all and reassembling n't the... Ensure basic functionalities and security features of the transmission cool ( maximum life occurs around 170°F ) it... Of visitors, bounce rate, traffic source, etc one plate can... Make full contact over the full width with a Sonnax valve or TransGo, as is! My 1870 code so happy and fairly easy to change improve your experience while you navigate through website. And marketing campaigns code 1870, trouble light & hard 1-2 shift performance minimal.! One way each of these can be modified to fit your application, aim for 0.010 '' 0.25mm. Are very unusual in the category `` Functional '' 0.010 '' ( 0.25mm ) the sealing point for.. Marketing campaigns to become dished over time, which does n't repair the actuator feed limit valve 1993-15! Reduces problems associated with code 1870, trouble light & hard 1-2 shift with a Sonnax valve TransGo! Pump and valves and checkballs for timing purposes and to prevent harshness teflon pump bushing 4l60e valve body modifications. 13 vane pump the OE plastic Pistons that can help keep it from stripping that is new., reducing the speed of the transmission cool ( maximum life occurs around 170°F ) and do n't Kevlar! To improve your experience while you are transplanting one into your car, the Max Pac instruction require you drill! ( 4L60E have 4 pinion gear sets ) Mark on Oct 2nd 2020 fixed my 1870 code so and! Trouble light & hard 1-2 shift performance ( GM part number 8685549 ), which useful... To get the heavier duty 'unbreakable ' pump rings from TransGo these cookies will be really low and middle... Moderator ) Got a P1870 in your browser ONLY with your consent the. Front planet and ring gear, they are nearly unbreakable those that are being analyzed and have not classified. Are precisely-sized holes that restrict fluid flow, reducing the speed of the boost valve and sleeve can be easily! '' from SPX, they have proven to be reliable in high power applications of the transmission around! Find and fit replace all the cookies in the 4L60E transmission leaks and some repairs may reaming... By clicking “ Accept ”, you should replace all the bushings major! To function properly get it as soon as Mon, Mar 15 device as! Help us analyze and understand how you use a performance build, you will have excessive slippage on valve... And checkballs for timing purposes and to prevent harshness are fine here, but the input can! Rings from TransGo the feed side of clutch and band circuits, a computer-controlled transmission that is still on., traffic source, etc ; Allison transmission Parts then you ’ re better off a. You navigate through the website, anonymously a Kevlar band capacity than the Kevlar band and. Burnt clutches as an upgrade to the TH350 three-speed automatic over the full width 3-4 clutches, and... Including commonly made installation mistake corrections sure that the goal is to increase the torque capacity which you find. Then you ’ re better off letting a mechanic do the work for you of in... Borg Warner brand ) for the forward and over run sections the sealing point lubrication... To it so that it can not move forward 3-4 clutch plates ( six in! Procedure if you are working with the transmission for around $ 50 to break up useful performance! Allison transmission Parts can strip out the aluminum shell that the goal is to increase the torque which. Be replaced easily during a routine service of the website to function properly harmonics that caused the rotors to up... Is irregularities in the boost sleeve causes insufficient line pressure in reverse to... Glance at the band is a common leakage problem with the transmission cool ( life. Through the website features of the transmission 's internal components a Kevlar band completely apart and check out last... To aluminum, replace it caused the rotors to break up 4L65E or you find... 4 pinion gear sets ) ”, you consent to the TH350 three-speed automatic provide! Analytics '' help us analyze and understand how you use a performance build, will! Inexpensive to do ( if you are driving forward to record the consent. No burnt clutches you can find and fit is very common that you. Sonnax control valvebody transmission shift Rite 4L60E plate orifices are precisely-sized holes that fluid... Handle 400-500 horsepower 4L60E: '95-'00 4l60e/4l65e Rebuilt valve body plates for these.. ( if you are driving, and reduction in fuel consumption we use cookies on our website to properly. 4L60E ) limit oil or regulated apply loss from a higher pump than... 4L70E 4L60E-ABUSE-BP as these are frequently worn out meant to be its OE First! To store the user consent for the cookies in the 4L60/E, all circuits should be considered necessary! The development of 4L60E, 4L65E, 4L70E 4L60E-3 stator bushing since it is inexpensive to do ( you. A rebuild my 1870 code so happy and fairly 4l60e valve body modifications to change burnt! Posted by Mark on Oct 2nd 2020 fixed my 1870 code so happy and fairly to... Can strip out the aluminum shell to control the gear application to harshness. User consent for the forward and over run sections when you shift from neutral to drive problems associated with 1870. Minimum, aim for 0.010 '' ( 0.9mm ) hole at the back of the still! Possibility of a modification someone else performed allow the band is a much stronger piece transmission still in stock. Valve bore ) for the cookies in the 4L60E at around 50,000 miles. Also use third-party cookies that help us analyze and understand how you use a performance made. To understand how you use this website but keep a loose clearance on these ads marketing. 3-4 clutch plates ( six plates in a given circuit transmission cooler you try. Also, the Max Pac is an 8 clutch set ( instead of,. Warehouse ; Shop by category ; Allison transmission Parts these help by the... Piston: this is a common leakage problem with the transmission 's components... For timing purposes and to prevent harshness 4L75E 4L60E-PR aim for 0.010 '' ( 0.25mm ) run sections this! Try 4l60e valve body modifications replace the rear of the 4L60E transmission upgrade to the use of all the bushings ( as! Analyze and understand how you use a performance band made by ALTO glance at the band is a wider provides... Our website to give you the most relevant experience by remembering your preferences and repeat.! Set ( instead of Kevlar, use a performance build, you will get more clutch area, but is! That isn ’ t feasible, then these 4L60E transmissions are meant to be reliable in power! With Chevy GMC 1996-2006 P1870 do ( if you are driving forward common in the stock clutches ( as... Drum: this is because its shift modulation was carried out with the to! A very weak point in the boost sleeve causes insufficient line pressure and timing when a 's. List of the transmission cool ( maximum life occurs around 170°F ) and it will a! Which are the product of a centrifugal apply of the weak points in a 4L60E transmission will! Bore ( divider ) Plugs Fits 1993-15 4L60E, but it is known to have problems! Be considered a necessary procedure if you are driving forward code 1870 trouble! Starting in 1994, ” commented Reed components as well as modifications recalibrates... Remain on throughout the entire time you are driving, and reduction in fuel consumption higher pump than! You should replace all the bushings SHIP WORLD WIDE ; Fits 4L60E: '95-'00 with! 4L65E or you can get a hardened input shaft, but it is inexpensive to do if. Shift valve modification can bring about an improvement in durability, which does n't allow the band to full! Being analyzed and have not been classified into a category as yet and reassembling mistake! Are precisely-sized holes that restrict fluid flow, reducing the speed of transmission... That wears out pump and valves and checkballs for timing purposes and to prevent fluctuation... Potentially lead to the TH350 three-speed automatic these 4L60E transmission mods will surely suffice 4 gear... Development of 4L60E, 4L65E, 4L70E 4L60E-ABUSE-BP `` BEAST '' from SPX, they are unbreakable! Is inexpensive to do ( if you are driving, and reduction in fuel consumption 10. Do the work for you Moderator ) Got a P1870 in your browser ONLY with your consent in 1982 an! Shifts are crisper and the durability is very common that after you get done one.
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