T15 3-Speed Borg-Warner Manual Transmission Parts for Jeep CJ5
Bearings, Gasket Kit and Shift Components for Your Transmission (1955–1975).
Why the T15 Transmission in the Jeep CJ5 Wears Out After Decades of Use.
The T15 transmission, alongside the T14, was one of the 3-speed gearboxes used in later Jeep CJ5 production years, known for its compact, rugged design. Even so, typical wear appears after decades of use: the input shaft seal hardens and starts leaking, allowing gear oil to escape and reducing lubrication of the gear set. Bearings on the mainshaft and input shaft wear out, causing whining noises or noticeable play. The shifter boot tears or becomes brittle, letting dust and moisture into the transmission housing. Nuts loosen from vibration, and the poppet ball and shift knob wear from decades of shifting. Rebuilding your T15 or replacing individual wear parts noticeably restores smoothness and sealing.
- Bearings: The rear main shaft bearing and input shaft bearing keep the gear train running smooth and quiet.
- Seal & Gasket Kit: The input shaft oil seal and the complete gasket and seal kit seal the transmission reliably.
- Repair Kit: The bearing repair kit bundles the key bearings for a complete overhaul.
- Mainshaft Hardware: The mainshaft nut secures the mainshaft.
- Shift Mechanism: The shifter boot, poppet ball and shift knob provide precise, comfortable shifting.
Proven American Engineering for Your T15 Transmission.
Whether it's a bearing, a gasket kit, or a small part, every piece for the T15 transmission comes from Crown Automotive, one of the best-known American manufacturers of Jeep and Willys parts. Built to series-production quality, these reproductions meet OEM specifications and reflect proven American engineering.
Your Partner for the T15 Transmission Rebuild.
Whether you're planning a full rebuild or a targeted parts swap, we're happy to advise on installation order, torque specs, and the differences from the closely related T14 gearbox. We can also help confirm the exact model-year fitment for your CJ5. Your order ships from our warehouse as fast as possible.