Twelve numbered bushing drivers and a handle sized to remove and install every bushing in a GM 700R4, 4L60, 4L60E or 4L65E, so new bushings seat square instead of cocked.
If your service manual calls for T-0220 drivers on a 700R4 or 4L60E overhaul, this is the set the steps are written around. It holds twelve numbered drivers, 60 through 71, plus a handle, and each driver is stamped for the bushing location it fits. It suits the shop or home builder doing a Silverado, Tahoe, Astro or Corvette 4L60E who wants to grab driver 66 for the extension housing without test-fitting the whole box.
The numbers on this set match locations inside the 700R4 family:
Those line up with the bushings GM services in its 4L60-E overhaul procedure, where each is pressed with a dedicated driver from the J 34196-B and J 21465-01 sets. The drivers are CNC-machined alloy steel with a black anodized finish and cross-reference the Atec Trans-Tool, OTC, Kent-Moore and SPX T-0220 and T-0220-700R4 sets.
A worn bushing alone rarely causes a no-move or harsh-shift complaint, so diagnose the whole unit first. Pull the pan, look at what is on the magnet, and read our 4L60E common problems guide to match the debris and symptoms to a cause. For Astro and Safari vans, the Astro van 4L60E guide covers the platform's own quirks. Once you know the unit is coming apart, the bench tools guide lists the rest of what you will want on the bench.
Fits GM 700R4 (700-R4), 4L60, 4L60E and 4L65E. That covers the 1993-2013 GM half-ton trucks and SUVs, S10 and Sonoma, Blazer, Camaro and Corvette that used the 4L60E, plus earlier 700R4 cars and trucks. Stator shaft bushing sizes vary with input spline count, so check which pump you have before you choose 67 or 68. If the transmission ID is in doubt, send us the year and VIN. Matching parts are on the 4L60E parts page.
| Brand | E-cowlboy |
| Number of Pieces | 13 (12 drivers #60-71 + handle) |
| Material | CNC-machined alloy steel, black anodized |
| Fits | GM 700R4 / 700-R4 / 4L60 / 4L60E / 4L65E |
| Cross-Reference | Atec Trans-Tool, OTC, Kent-Moore, SPX T-0220 / T-0220-700R4 |
| Head Style | Clutch head |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Driver 66 is stamped for the extension housing. Driver 70 is for the case bushing and 71 for the front pump body.
It is built to the same layout and cross-references the Atec Trans-Tool, OTC, Kent-Moore and SPX T-0220 and T-0220-700R4 sets, so manual steps that call for those drivers line up with these numbers.
A few driver-to-bushing fits run slightly loose. Start the bushing by hand so it stands square, then drive it. It will not wander once it is started straight.
Yes. Drivers 61, 67 and 68 cover the front pump cover stator shaft, including the 27-spline and the 3/4 inch 30-spline versions. Identify your pump before choosing.
No. It is listed only for the 700R4, 4L60, 4L60E and 4L65E. Other units use different bushing sizes.
