T90 Manual 3-Speed Borg-Warner Transmission Parts for Jeep CJ2A

Post-War Drivetrain Precision and Strength: Jeep CJ2A T90 Transmission Solutions.

The Warner Gear T90 three-speed manual transmission is a defining drivetrain component that granted the 1946–1949 Jeep CJ2A civilian Jeep its legendary utility on post-war farms. Engineered as a much heavier casting than its wartime predecessor, the T-84, the T-90 was specifically brought into service to reliably handle agricultural towing loads and industrial power take-off (PTO) tasks. However, decades of field labor or prolonged storage naturally cause internal gear synchronized clearances to fatigue, bearings to growl, and shift forks to bind. Popping out of gear under trail load or severe main shaft end-play requires immediate mechanical attention. Our specialized online inventory features professional-grade replacement hardware to successfully overhaul your classic manual gearbox.

Authentic Engineering for Flatfender Restorations: Crown Automotive Excellence.

For full-scale mechanical overhauls of your internal gear sets, we strictly rely on the trusted quality of Crown Automotive. Rebuild your entire casing seamlessly with the master Crown T90 transmission rebuild kit, packed complete with heavy-duty input/output shaft bearings, precise paper shims, oil seals, case gaskets, needle rollers, snap rings, and small hardware clips.
For targeted drivetrain maintenance, explore our standalone inventory featuring replacement input shaft bearings, main shaft bearings, exact-tolerance main shaft spacer rings, and comprehensive outer gasket kits. Lock your rotating rotating assemblies tightly into place using a fresh main shaft lock nut paired with the factory-spec heavy-duty flat washer. Secure crisp, binding-free control right at your floorboard by installing replacement manual shift knobs and the critical mechanical shift interlock ball / detent pin set to restore perfect gear synchronization and guide rail alignment.

Expert Support for Your Historic Jeep CJ2A T90 Gearbox Overhaul.

Overhauling a classic manual T90 gearbox and setting the correct countershaft thrust washer tolerances requires absolute mechanical accuracy. Our outstanding customer service is here to guide you through selecting the correct internal bearings, spacer shims, and gaskets tailored to your specific post-war production year. With our fast shipping, your transmission components will arrive quickly, keeping your classic Jeep CJ2A shifting smoothly through every terrain.