4T60E Master Rebuild Kit 1995, new and ready to install. Fits the 4T60E. Ships fast from the USA.
Built for the later 4T60-E, this master rebuild kit covers 1995 and newer units, the years when the transaxle was in almost every mid-size and full-size GM front-wheel-drive car. That includes the 1995-99 Chevrolet Monte Carlo, the Lumina, the Buick Century and Regal, the Buick LeSabre and Park Avenue, Oldsmobile 88 and Cutlass Supreme, the 1995-96 Buick Riviera, and V6 compacts such as the Skylark, Achieva, Beretta and Corsica. Owners usually arrive here after the car started slipping out of gear on the highway, banging into Drive, or showing burnt fluid at a service, and a shop has said the unit needs a full overhaul.
By 1995 the 4T60-E had been in production for four years and GM had already revised its valve body; the hard parts carried on largely unchanged until the 4T65E took over beginning in 1997. A worn unit loses its ability to hold a gear because the clutch packs and bands that lock each gear member have lost friction and the seals that let pressure apply them have hardened. This kit renews all of it at once. The listing describes Borg-Warner clutches with matching steel plates, a Transtec soft parts set with every rubber seal and gasket the overhaul needs, a new filter, and new bands. Having the steels in the box matters: a heat-discolored steel behind a new friction is one of the fastest ways to get a shudder on a fresh rebuild.
A full kit is the right purchase only when the clutches are actually worn. Check codes, fluid condition and line pressure first. If line rise is low, the cause may be a worn pressure regulator or boost valve bore, and new clutches will burn again unless the valve body is repaired at the same time. Pan debris plus slipping that gets worse with heat points to internal wear. The 4T65E inherited much of this design, so our 4T65E diagnosis guide and the pump failure guide both apply closely to this transaxle.
The listing applies this kit to 1995 and later 4T60-E transaxles. GM built a heavy-duty 4T60-E HD in 1996 for the supercharged 3800, and some later applications ran into 1999 alongside the new 4T65E, so confirm your unit is a 4T60-E and not a 4T65E by the identification tag before ordering. If you have a 1991-94 unit, the 1991-94 4T60-E master rebuild kit is the correct choice. Send us your year and VIN if you want us to check fitment, and see all related parts on the 4T60-E and 4T65E parts page.
Soak the new frictions and bands in fluid for thirty minutes before installing them. After fitting a new forward band, check its clearance: Sonnax notes the clearance is often large even with a new band because the servo pin bore in the case wears, and recommends a longer servo pin with sealing rings to cut the roughly 0.400 inch stroke in half. Set clutch clearances to specification, replace worn bushings, and inspect the sprag assemblies; a worn 4T60-E sprag clutch causes slips the kit cannot fix. A 4T60-E shift kit installed during the rebuild firms up shift timing and reduces clutch heat. Fill with Dexron VI and check the level hot.
| Fits | 4T60E 1995 |
| Part type | Master Rebuild 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.
The listing covers 1995-up 4T60-E units but does not separately call out the 1996 HD version used behind the supercharged 3800. Send us the year and VIN or the case tag details and we will confirm before it ships.
Per the listing: Borg-Warner clutches, steel plates, a Transtec soft parts set with the rubber seals and gaskets for the overhaul, a new filter and new bands.
The case bore for the forward band servo pin wears over time. Sonnax recommends a longer servo pin with sealing rings to take up the extra clearance and stop band slip and breakage.
No. GM phased in the 4T65E starting in 1997, but some vehicles kept the 4T60-E for a few more years. Check the identification tag on the case to see which unit you have.
Dexron VI, which GM made back-serviceable into older Dexron III transmissions such as the 4T60-E. Refill, run through the gears and check the level at operating temperature.
