The 7 tools a 4L60E, 4L65E, or 700R4 rebuild actually calls for, in one set: spring compressors, seal resizers, pump alignment band, bushing drivers, and the Lip Wizard.
Rebuilding a 4L60E from a Silverado, Tahoe, Sierra, S10 or Camaro, or an older 700R4, and tired of fighting return springs and Teflon rings with a socket and a screwdriver? This 7-piece set collects the specialty tools the GM 4L60E, 4L65E, 4L70E and 700R4 actually call for: drum spring compressors, shaft seal resizers, a front pump alignment band, bushing and seal drivers, and a Lip Wizard seal protector. The pieces are hardened steel and machined aluminum, and the set ships from the USA.
Most of a 4L60E comes apart with hand tools. The trouble spots are the handful of places where an improvised tool damages a part or leaves a seal that will not hold pressure. The input and reverse input drums use a stack of return springs under a retaining ring, and the spring compressors hold that stack down so the ring comes out and goes back in without the springs launching or the piston being cocked in its bore. The turbine and stator shafts carry Teflon sealing rings that stretch when installed; the resizers squeeze them back to diameter so the drum slides over without cutting a ring. The pump body and cover have to torque together dead concentric, and GM's procedure calls for an alignment band (J 21368) around the halves before the cover bolts go to 18 lb ft, or the rotor can bind and kill the pump on first start. The drivers set bushings square and to depth, and the Lip Wizard lets a drum pass over a lip seal without rolling it.
Lay out the job before you buy. Our 4L60E bench rebuild tools guide goes measurement by measurement, with the GM J-numbers, and separates the tools you cannot skip from the ones that only save time. If the unit has failed already, the 4L60E common problems guide helps you predict what you will find inside, so you know whether you are in for a reseal or a full hard-parts job. This set does not include a dial indicator, an inch-pound torque wrench or a holding fixture; for the last of those, see the 4L60E holding fixture and bench base.
The set is listed for the GM 4L60E, 4L65E, 4L70E and 700R4. Those units share the drum, shaft and pump architecture these tools are made for, which covers the 1993-2013 Silverado 1500, Sierra 1500, Tahoe, Yukon, Suburban, S10, Blazer, Camaro and Corvette 4L60E applications and the earlier 700R4 trucks and cars. Turbine shaft lengths and converter sizes vary across those years, so confirm the resizer and driver sizes against your parts on the bench before you commit, and send us your transmission model if anything looks off. Everything else for the job is in the 4L60E parts collection.
Use the compressors with the drum supported on its hub, compress only far enough to free the ring, and release slowly. Install the Teflon rings on the turbine and stator shafts, then leave the resizer on until you are ready to install the matching drum. Band the pump halves before torquing the cover bolts to 18 lb ft, then torque the pump to the case at the same figure. Drive bushings with the driver that matches the bore and check depth before moving on. Lube lip seals with assembly lube or ATF and run the Lip Wizard every time a drum goes over a seal. Pair the set with a complete kit such as the 4L60E master rebuild kit with band and clutches or the 1993-2003 banner rebuild kit, and refill with Dexron VI once the transmission is back in the vehicle.
| Fits | GM 4L60E, 4L65E, 4L70E, 700R4 |
| Pieces | 7-piece pro set |
| Includes | Spring compressors, seal resizers, pump alignment band, bushing/seal drivers, Lip Wizard |
| Material | Hardened steel and machined aluminum |
| Ships | From the USA |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for the GM 4L60E, 4L65E, 4L70E and 700R4. Confirm the resizer and driver sizes against your shafts and bushings before starting, since shaft lengths vary by year and converter size.
No. The set covers spring compression, seal sizing, pump alignment, bushing and seal driving, and lip seal protection. You still need a dial indicator for end play, an inch-pound torque wrench and a holding fixture.
The pump body and cover must be torqued together concentric. GM's procedure bands the halves before the cover bolts go to 18 lb ft; skipping it can pinch the rotor and ruin the pump on first start.
Replace them with the ones in your rebuild kit. Install them, then leave the resizer on the shaft until the matching drum goes on so the rings are back to size and do not get cut.
That depends on what failed. A reseal-and-frictions banner kit covers a tired but intact unit; a master kit with band, steels and pistons is the better choice if the 3-4 pack or band is burned.
