4T60E Overhaul Kit 1991, new and ready to install. Fits the 4T60E. Ships fast from the USA.
This is the gasket and seal overhaul set for GM's 4T60E, the electronically controlled front-drive four-speed that first appeared for the 1991 model year in Buick, Oldsmobile, Pontiac and Chevrolet V6 cars. It is listed for 1991 and the source catalog covers 1991-up units, so it applies to the first-year transaxles and the later 4T60E cases that followed. Shoppers usually find it while chasing an old car that drips fluid from several places at once, engages slowly on a cold morning, or has been opened up for a clutch or band repair and now needs everything resealed. The kit is the Transtec part 2223 with a molded rubber pan gasket, also cross-referenced as 84002EW.
The 4T60E keeps the chain-drive layout of the earlier 440-T4 but adds computer-controlled shift solenoids and torque converter clutch control. Inside, clutch packs and bands are applied by oil from the pump, and that oil has to stay inside each piston and passage to do any work. The overhaul kit replaces the parts that seal those circuits: piston lip seals, O-rings, sealing rings for the rotating members, the pan and side cover gaskets, and the external seals. After three decades the original rubber has shrunk and hardened, so a rebuild that reuses it will leak internally and lose apply pressure even with new clutches. This is a soft parts set only. It does not contain frictions, steels, bands or a filter, so plan to source those separately if your teardown calls for them.
Clean the transaxle and drive it to find where the leak actually starts; a pan gasket alone may be all an otherwise healthy car needs. For slip and engagement complaints, check the fluid level and condition first, then pull the pan. Clutch material on the magnet means you need frictions on top of this kit. Lockup complaints often trace to the converter clutch circuit, so test the 4T60E TCC solenoid for 1991 before blaming seals. The 4T65E is a direct descendant of this design, so our delayed engagement guide and 4T65E diagnosis guide are useful checklists for a 4T60E as well.
The listing names the 4T60E for 1991 and the catalog fitment runs 1991-up. GM made running changes to the 4T60E through the 1990s, mostly in the valve body and converter clutch control, so confirm you have a 4T60E and not the earlier 440-T4 or the later 4T65E. The quickest check is the transaxle ID tag; the electrical connector for the internal solenoids also separates the 4T60E from the older non-electronic unit. If you are unsure, send us your year and VIN. We list 4T60E parts alongside the 4T65E on our 4T65E and 4T60E parts page.
If the clutches are worn too, the 4T60E master rebuild kit for 1991-92 adds frictions and steels to the seals.
| Fits | 4T60E 1991 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | OEM |
| 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 gasket and seal set: piston seals, O-rings, sealing rings, gaskets and a molded pan gasket. Frictions, steels, bands and the filter are not included.
The kit is listed for 1991 and catalogued for 1991-up 4T60E units. Check your transaxle ID tag to confirm it is a 4T60E, not a 440-T4 or 4T65E, and send us your year and VIN if you want us to verify.
No. The 4T65E was redesigned with a different pump and converter, so it needs its own overhaul set. We stock separate 4T65E overhaul kits.
GM made Dexron VI back-serviceable for transmissions that originally called for Dexron III or IIE, so a quality Dexron VI fluid is the current choice. Check the level at operating temperature.
Not always. If the transaxle shifts well, the pan gasket in this kit may be enough. Buy the full set when the unit is coming apart for a rebuild or when it leaks from several seals.
