Richmond Gear 1304000062 Super T-10 4-Speed Transmission, GM 2.88

The Richmond Gear 1304000062 Super T-10 is a new 4-speed manual transmission built as a modern version of the Borg-Warner Super T-10, engineered for GM performance cars, street rods, and light trucks. A 2.88:1 first gear ratio balances strong launches with comfortable highway cruising.

What it is for

Fully synchronized in every forward gear, with a constant-mesh first and reverse design, this transmission is built to minimize gear clash during spirited driving as well as competition use. Heavy-duty strut-type synchronizers are meant to hold up to repeated hard shifts over time.

What to check before buying

• Weight: the aluminum case brings this transmission to roughly 70 pounds, lighter than a cast-iron equivalent.
• Shaft fitment: input shaft diameter is 1.125 inches with a 26-spline count; output shaft is 1.375 inches with 32 splines.
• What is not included: bellhousing, shifter, and slip yoke are sold separately from this transmission.

What fluid does it take? GL-4 80W-90 gear oil, at a 2.4-pint capacity.

What is the warranty? Coverage runs 1 year or 50,000 miles, whichever comes first, under Richmond's limited warranty.

Part number 1304000062 is commonly paired with Chevrolet, Pontiac, Buick, and Oldsmobile applications, though as with any swap, the correct bellhousing and clutch assembly need to be matched to your specific engine and chassis, and that pairing is what ultimately decides fit. transmissions