4L60E Overhaul Kit 1993, new and ready to install. Fits the 4L60E. Ships fast from the USA.
1993 was the first model year GM put the electronically controlled 4L60E into its rear-drive trucks, replacing the hydraulic 700-R4 (by then renamed 4L60). If you are rebuilding one of those first-year units out of a 1993 C/K 1500 pickup, Suburban, full-size Blazer or similar GM truck, this is the gasket and seal overhaul kit for it. Owners usually land here after the same handful of complaints: a pan or front seal that keeps leaving spots, a slow bite into Drive on cold mornings, or a slip on the upshifts once the fluid is hot. The kit pictured is a Transtec-branded overhaul set, the soft-parts bag a rebuilder opens first on the bench.
Every apply device in a 4L60E is moved by fluid pressure: the overrun, forward, 3-4 and reverse input clutches in the rotating drums, the low/reverse clutch at the back of the case, and the 2-4 servo that clamps the band. That pressure only does its job if the piston seals, sealing rings and O-rings hold it in the right circuit. After more than thirty years of heat cycles the rubber on a 1993 unit is hard, shrunken and often cracked, and the case, pan and valve body gaskets have been compressed past the point of resealing. An overhaul kit replaces that whole layer at once, so the drums, pump and valve body you reuse go back together with fresh sealing surfaces everywhere instead of one new seal next to twenty old ones.
Frictions, steels and the 2-4 band are a separate purchase with this type of kit. If the clutches are burnt, step up to the 1993-1996 overhaul kit with band and filter or pair this kit with a friction pack.
Check the fluid level and condition first. Clean red fluid with a leak is a reseal job; black, burnt-smelling fluid with friction material in the pan means the clutches are gone and you need a full rebuild. Pull codes, because an electrical fault can feel exactly like a slipping clutch. Our 4L60E common problems guide walks through which failures are seal and pressure related and which are hard parts, and the 3-4 clutch apply and AFL valve article covers why 3-4 packs burn even with new seals.
This listing is for the 1993 4L60E. Two cautions specific to that year. First, confirm you actually have a 4L60E: the 1993 Camaro, Firebird and Corvette still used the hydraulic 4L60, which looks similar but has a throttle valve cable and takes a different gasket set. Second, 1993 units use the early on/off torque converter clutch control, before GM moved the 4L60E to a PWM converter clutch in the mid-1990s, so early pump covers and valve bodies differ from later parts. Read the transmission ID tag on the case, compare the pan and valve body gaskets with your originals before you start, and send us your year and VIN if anything does not match. Browse every part for this unit on the 4L60E collection page.
If the 3-4 pack was already marginal, a new 4L60E clutch module saves rebuilding the input drum assembly piece by piece.
| Fits | 4L60E 1993 |
| 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.
Usually not. Those cars still used the hydraulic 4L60 in 1993 and got the electronic 4L60E in later model years. Check the transmission ID tag and look for a throttle valve cable; if you have one, it is not a 4L60E.
No. This is the gasket and seal overhaul set. If the frictions are burnt or the fluid is black, buy a friction pack with it or choose a master kit that includes frictions, steels and a band.
It includes the seals needed to reseal the unit, including the front pump area. If the leak is from a worn converter hub or a bushing that lets the hub wobble, fix that too or the new seal will leak again.
Dexron VI ATF. It is GM's current specification and is backward compatible with the original Dexron used in 1993.
Clear any stored codes, and if your scan tool offers a transmission adapt reset for the truck, run it so the controller does not keep compensating for the old leaks. Then drive gently for the first few hundred miles while the new seals seat.
