Brinn Transmission Kit for 2 Piece Rear Main Seal

Sold per kit and matched to a 2-piece rear-main-seal configuration, this manual racing gearbox package may fit a road-going vehicle, a restoration project, a muscle car, a work truck, a hot rod, or a race-only build, with the exact match set by the specific model.

What rear main seal style is this?

It is built around the 2-piece configuration specifically, so confirm your engine's seal style lines up before buying; a 1-piece-seal engine calls for a different kit entirely.

What else to verify before ordering

Beyond the seal style, check the gear ratios, torque rating, spline counts on each shaft, bellhousing bolt pattern, clutch requirements, and shifter location against your own build, since this kit covers a family of Brinn gearboxes rather than one single fixed spec. Expect to still source a slip-yoke driveshaft cut to length, a compatible shifter linkage, a transmission mount, and the recommended fluid to finish the job.

Q: Does any bellhousing or shifter ship with the kit itself? Treat this listing as covering the gearbox family rather than a fixed accessory list, and confirm exactly what is bundled with us before you order.

Q: Is this geared toward street use or race-only duty? That depends on the specific gear ratios supplied with the unit you receive, so confirm fitment with us for your particular vehicle first.