Master overhaul kit for the late 4L60E: frictions, steels, gaskets, seals and filter to rebuild a 2004-2010 GM truck or SUV unit in one pass.
Heavy GM SUVs and half-ton trucks from 2004-2010 are hard on the 4L60E family. A Tahoe or Yukon towing a camper, an Avalanche with a V8 and big tires, or a 4L65E-equipped SUV that has seen years of heat will eventually start slipping out of 3rd, lose the forward clutch, or simply fill the pan with friction dust. This master rebuild kit, manufacturer part number CXT-GN02483, is set up for that late configuration and also lists the 4L65E, 4L70E and 4L75E that share the same case and clutch layout. It covers frictions, steel plates, gaskets, the seal and O-ring set and the pan filter so the soft parts and clutch packs are renewed in one teardown.
The 4L60E uses five clutch packs and a band to make its gears: the forward clutch for drive, the 3-4 clutch for 3rd and 4th, the overrun clutch for engine braking in manual ranges, the reverse input clutch, and the low-reverse pack. Each pack depends on lip seals and sealing rings to hold apply pressure. When one pack fails, its debris travels through the valve body and cooler and damages the rest. The CXT-GN02483 replaces the friction and steel plates along with the metal-clad front and rear seals, Teflon and lathe-cut rings and gaskets, so nothing old is left holding pressure behind new clutches. It is a master kit, not a super master: pistons, a band, bushings and hard parts are bought separately if teardown shows they are needed.
Drop the pan and look before you order. Friction material, glitter or a burnt smell in the fluid means the packs are worn and a solenoid or fluid service will not bring it back. Clean fluid with a stored code usually means you are chasing a hydraulic or electrical fault instead. A shift that feels harsh or mushy on the 1-2 can also be the accumulator; see the 1-2 accumulator shift feel guide before you commit to a full overhaul.
The listing covers the 2004-2010 configuration in Chevrolet Silverado, Tahoe, Suburban, Avalanche, Express and Colorado; GMC Sierra, Yukon, Savana and Canyon; and Cadillac Escalade. Not every one of those vehicles left the factory with a 4L60E family transmission in every year, and some Escalades and heavier-duty models used a different unit, so check the RPO sticker in the glovebox. A kit for a 1993-2003 4L60E will not match the later seals and rings. Send us the year and VIN if you want fitment confirmed, and see the full 4L60E parts collection for matching hard parts.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. The CXT-GN02483 is a master kit with frictions, steels, gaskets, seals, sealing rings and a filter. Pistons, the 2-4 band, bushings, the sun shell, pump and torque converter are separate purchases if teardown shows wear.
Only if it has a 4L60E family transmission. Several later Escalades used a six-speed instead. Check the RPO code on the glovebox sticker or send us the VIN and we will confirm.
Yes. The listing covers the 4L60E, 4L65E, 4L70E and 4L75E in their 2004-2010 configuration because they share the case and clutch layout. Match each seal and ring against the original during assembly.
That symptom usually means the forward clutch pack has failed, which this kit covers. Also inspect the forward sprag and input housing during teardown, since those hard parts can fail alongside the clutches.
Dexron VI ATF. Soak the frictions before assembly, fill with Dexron VI, and check the level hot with the engine running in park.
