4L65E Shift Kit 2004, new and ready to install. Fits the 4L65E. Ships fast from the USA.
If the 4L65E in your 2004-2007 Silverado, Sierra, Tahoe, Yukon, Suburban or Avalanche has burnt through its 3-4 clutches, slips on the 1-2, or came out of the pan black and full of debris, a basic overhaul kit only covers part of the job. This listing is a complete master rebuild package for 2004-up 4L60E and 4L65E transmissions, and the shift kit in the title is one piece of it. You get the soft parts, the friction and steel plates, the pistons, a new reverse input drum, a new forward sprag and a TransGo 4L60E-HD2 reprogramming kit in one order, so the whole unit goes back together on matched new parts.
The 4L65E applies its clutches and 2-4 band with hydraulic pressure metered by the valve body, servo and accumulators. From the factory those circuits are tuned for a soft shift, which means the 3-4 pack spends extra time slipping on every upshift. TransGo says the HD2 recalibrates the accumulation system and the clutch and band feed orifices, works with an aggressive line pressure curve, and adds a drop-in TCC isolator and regulator valve with longer lands to restore a worn bore. It also includes the 7-CS 3-4 clutch return spring kit for the input drum. On a truck that tows, that shorter slip time is what keeps the new frictions alive.
Read codes, check the fluid, and test line pressure if you can. A shift complaint is not always internal, so start with our 4L65E harsh or delayed shifts walkthrough, and if the truck is a Silverado, compare your symptoms against the Silverado 1500 shift problems guide. If the pan shows heavy friction material or metal, or a gear is missing, the unit is coming out and this kit covers the rebuild.
The listing is for 2004-up GM 4L60E and 4L65E transmissions, which covers 2004-2007 4L65E trucks and SUVs. It is not the right kit for an earlier unit, because the drum, pump and solenoid parts changed. GM also updated the gear train in March 2007 with a thicker reaction carrier bearing, and 2007-up units carry an input speed sensor, so a late build should be checked part for part. Confirm the RPO code (M32 for the 4L65E) and send us your year and VIN if you are unsure. More parts for this unit are on the 4L65E collection page.
| Fits | 4L65E 2004 |
| Part type | Shift Kit |
| Condition | New |
| Brand | GM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It is a full master rebuild kit for 2004-up 4L60E and 4L65E units. The TransGo 4L60E-HD2 shift kit is included along with the overhaul kit, frictions, steels, pistons, reverse input drum, sprag, solenoids, filter, bushings and thrust washers.
This kit is listed for 2004-up units. 2003 and earlier transmissions use different drum, pump and solenoid parts, so pick a kit for your year range or send us your VIN.
It firms the shifts and shortens slip time, which is the point on a truck that tows. TransGo designs the HD2 for durability with firm shifts, not a race-only feel, so it suits a work truck that is driven every day.
A converter is not included. If the old one was run with burnt fluid or set P1870 or P0894, have it inspected or replaced, and always flush the cooler.
Chevrolet Performance lists 11.2 quarts dry for the 4L65E. Use Dexron VI and set the final level hot with the engine running.
