Frictions, steels, 2-4 band, bonded pistons, filter and every gasket and seal to overhaul a 2004-up GM 4L60E or 4L65E that slips or lost 3rd and 4th.
A 2004-2010 Silverado, Tahoe, Avalanche or Colorado that slips into 3rd, drops out of 4th on the highway, or slides through the 1-2 shift usually has a burned 3-4 pack and a tired 2-4 band. This master rebuild kit is built for the later GM 4L60E and the 4L65E, the 2004-up case, and it goes further than a basic soft-parts kit: along with the frictions, steels, filter and gaskets it includes a new 2-4 band and bonded input and forward pistons. That covers the parts most likely to be cooked in a high-mileage or towing truck.
In the 4L60E, the 2-4 band wraps the reverse input drum to hold 2nd and 4th, and the 3-4 clutch pack carries the load in 3rd and overdrive. Those two components take the most abuse in a heavy half-ton, and they wear together. The band in this kit replaces a glazed or thin lining rather than asking it to survive another 100,000 miles. The bonded pistons have their seals molded onto the piston, so you are not stretching loose lip seals over a piston that may already be grooved. Around them you get the friction and steel plates for every pack, the valve body separator plate gaskets, case and pan gaskets, front and rear lip seals, sealing rings, O-rings and a new filter.
Pull codes and look at the fluid before you commit to a teardown. A P0748 alone can be a solenoid replacement, and a 2004-up pressure control solenoid is a much smaller job than a rebuild. If the pan holds heavy clutch and band debris and the truck slips in more than one gear, the overhaul is justified. Our 2-4 band and servo guide explains how band wear feels on the road, and the 1-2 accumulator guide helps you separate a band problem from a shift-feel problem.
Listed applications are the 2004-2010 Silverado 1500 with the 4.3L, 5.3L and 6.0L, the 2004-2007 Express 2500, 2004-2008 Avalanche, 2004-2010 Colorado and Canyon, 2004-2006 Escalade, 2004-2005 Astro and the 2004 Corvette, plus the Tahoe and Yukon of the same years. It covers the 4L65E behind the 6.0L as well as the 4L60E. For a truck built in 2003 or earlier, use an early-case kit such as the 1993-2003 overhaul master kit. GM kept revising the unit after 2004, so compare the pistons and the separator plate gasket against what comes out of your case, and send us your year and VIN if you are unsure. Every 4L60E part we stock is on the 4L60E collection page.
Plan the job around the tool list in our 4L60E bench rebuild tools guide.
| Transmission | GM 4L60E / 4L65E (2004-up) |
| Includes | Friction plates, steel plates, 2-4 band, bonded pistons, filter, valve body gaskets, pan gasket, seals and O-rings |
| Fits | 2004-2010 Silverado 1500, 2004-2008 Avalanche, 2004-2010 Colorado, 2004-2007 Express 2500, 2004-2006 Escalade, 2004-2005 Astro, 2004 Corvette |
| Kit weight | 13.2 lb |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. It is listed for the 2004-up 4L60E and 4L65E, including the 6.0L Silverado applications.
The 2-4 band and the apply pistons are common wear items in a burned 4L60E. Including them means you do not reuse a glazed band or regroove old pistons.
No. GM changed the 4L60E for 2004, and this kit is for the 2004-up case. A 2003 or older truck needs the early-case kit.
No. The sun shell, drums, planetaries and bushings are hard parts and are not part of a soft-parts kit. Inspect them, since a cracked sun shell will cause the rebuild to fail.
Use Dexron VI ATF. Check the level with the engine running and the fluid at operating temperature after a test drive, and recheck after the first few hundred miles.
