Complete 4L60E overhaul kit for 1997-2003 GM trucks and SUVs: friction plates, steel plates, full gasket and seal set, bushings and filter.
Searching for a complete overhaul kit for a 1997-2003 Silverado 1500, Sierra 1500, Tahoe, Suburban, Jimmy, Blazer, S10, Trailblazer, Envoy, Astro, Safari, Camaro or Firebird? This master kit carries every soft part a 4L60E or 4L65E needs for a bench rebuild in that era, including the steel plates that cheaper kits leave out. It is built for the truck that slips into overdrive, drops to second, or reverses slowly with dark, burnt fluid.
The kit includes friction plates for the forward, overrun, 3-4 and low/reverse packs and the 2-4 band, hardened steel reaction plates, the full gasket and seal set, pump and case bushings, thrust washers, Teflon sealing rings, O-rings, a filter and small hardware. Shipping weight is about 10.4 lb. Having the bushings, thrust washers and sealing rings in the same box is the practical win here: a 4L60E overhaul usually stalls when the case is apart and one ring or washer turns out to be missing.
This is the PWM generation. From 1997 on, GM controlled converter clutch apply with a pulse-width modulated solenoid instead of simple on/off lockup, which gives a smoother engagement but makes the unit more sensitive to valve body wear. The geartrain still relies on the same packs: forward clutch for drive, 3-4 for third and fourth, the 2-4 band for second and fourth, and the overrun clutch for engine braking. The 3-4 pack has the fewest plates and takes the overdrive load, so it is usually the first to burn.
A worn valve body can make a healthy clutch look bad and will burn a new one. Sonnax traces converter slip and P0741 to TCC regulator bore wear, and pressure regulator wear to 3-4 clutch and 2-4 band failures. If you rebuild the case, address the valve body too; a TCC regulator and isolator valve kit repairs the most common bore. The 4L60E valve body rebuild walkthrough covers vacuum testing and inspection.
Listed for GM 4L60E and 4L65E units from 1997 through 2003 behind the 4.3L V6 and the 4.8L, 5.3L, 5.7L and 6.0L V8s, including the 1999-2003 Escalade. Sonnax splits many 4L60E parts at '96-earlier versus '97-later PWM units, so a 1996 or early 1997 truck may carry the older non-PWM hardware. Read the transmission tag before ordering, or send us the year and VIN. Shop the rest of this unit on the 4L60E collection page.
| Fits | GM 4L60E / 4L65E, 1997-2003 |
| Engines | 4.3L V6, 4.8L / 5.3L / 5.7L / 6.0L V8 |
| Includes | Frictions, steels, gasket and seal set, bushings, thrust washers, sealing rings, filter |
| Not included | Hard parts, sun shell, pump, valve body, converter |
| Kit weight | 10.39 lb |
| Ships from | USA |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes, the listing covers both the 4L60E and 4L65E in 1997-2003 GM vehicles. Count the plates in each pack against your old ones during teardown, since 4L65E and upgraded units can run different clutch counts.
It is listed for 1997-2003. Many 4L60E parts change at the 1996 to 1997 PWM converter clutch split, so check your transmission tag or send us the VIN before ordering for a 1996 or early 1997 build.
No. The kit is frictions, steels, gaskets, seals, bushings, thrust washers, sealing rings and a filter. The sun shell, pump, valve body and converter are separate purchases.
Steels that have been overheated go blue or cone and stop the pack applying flat. Reusing them is a common reason a fresh rebuild slips again, so on a burnt unit new steels are worth it.
Fill with Dexron VI ATF, check the level hot, and clear the transmission adaptive values with a scan tool so the computer relearns shift timing on the new clutches.
