Master overhaul kit for the GM 4L60E with friction plates, steels, gaskets, seals and o-rings to reseal and reline the unit on the bench in one pass.
If your Silverado, Tahoe, Sierra, Yukon, Escalade or Firebird with a 4L60E slips when it should be in third or fourth, flares between shifts, or leaves a red puddle under the bellhousing and pan, the transmission is usually past the point where a fluid change or a solenoid will help. This master kit is for the owner or shop that has decided to pull the unit and do it once: it puts new friction plates and new steel plates in every clutch pack and replaces the gaskets, case seals, O-rings and sealing rings in the same teardown, for 1994 and later rear-wheel-drive 4L60E applications.
The 4L60E makes its four forward gears and reverse by clamping clutch packs and the 2-4 band with line pressure. Each pack is a stack of lined friction plates interleaved with flat steel plates, and each piston only holds as well as its lip seals and the sealing rings that feed it oil. When frictions glaze or steels heat-check, the pack slips; when seals harden, pressure bleeds off before it reaches the piston and the pack slips anyway. A plain overhaul kit only addresses the second half of that. This kit carries both halves, so the forward, overrun, 3-4, reverse input and low-reverse circuits all go back together with fresh lining, fresh steel faces and fresh sealing surfaces.
Pull the pan first. A pan with a light gray film is normal wear; a pan with flakes of lining and a burnt smell means clutches. Scan for codes: a P0748 points at the pressure control solenoid circuit and a P0741 often comes from worn valve body bores rather than worn clutches, and either can make a healthy unit feel like it is slipping. If you see no third and no fourth at all with no flare, suspect the sun shell before the clutches. Our 4L60E common problems guide walks through separating those failures, and the bench tools guide shows what you need on hand before you commit to a teardown.
The listing covers the GM 4L60E and 4L60-E from 1994 forward in rear-wheel-drive Chevrolet, GMC, Cadillac and Pontiac trucks, SUVs and cars. That range spans running changes, including two pump-to-case sealing designs and several valve body gasket patterns, so confirm your unit by the ID tag on the case and match each gasket hole for hole against the one you remove. If you have a 1993 unit or are not sure what is in the truck, send us the year and VIN before ordering. Other year-specific kits are listed in the 4L60E collection.
The kit does not include a torque converter, drums, the sun shell, bushings or a filter. Inspect those hard parts while the case is empty, have the converter serviced or replaced so old debris is not pumped into the new clutches, and replace the low roller clutch if it free-wheels both ways or shows brinelled rollers. Ships from the USA.
| Fits | GM 4L60E / 4L60-E, 1994 and up |
| Kit level | Master overhaul - frictions, steels, gaskets, seals, o-rings |
| Applications | Chevrolet, GMC, Cadillac, Pontiac rear-wheel-drive |
| Fluid | Dexron VI |
| Condition | New |
| Ships | From the USA |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. It includes friction plates and steel plates for the clutch packs along with the pan gasket, case seals, O-rings and sealing rings. It does not include a torque converter, drums, sun shell, bushings or a filter.
The listing covers 1994 and later units. 1993 transmissions have some early-only parts, so send us the year and VIN and we will confirm fitment or point you to a 1993-specific kit.
Use Dexron VI. Soak the new frictions in it before assembly and fill the unit with it, then check the level hot with the engine running.
Plan on a new filter, service or replace the torque converter, and replace any bushing, drum or sun shell that shows wear. If the 3-4 pack burned, a heavy duty 3-4 pack and a shift kit are common upgrades.
Clear any stored codes and let the computer adapt over several drive cycles of normal driving. Some scan tools can reset transmission adapts, which helps shift feel settle sooner.
