T-84 3-Speed Borg-Warner Manual Transmission Parts for Willys MB

Manual Transmission Parts & Rebuild Kits for Warner T-84 Transmission: Boots, Knobs & More.

Restore mechanical shifting precision and battlefield reliability to your World War II veteran. We offer a highly specialized catalog for the T-84 3-speed unit – from essential small parts rebuild kits to period-correct leather shifter boots in military shades.
  • Overhaul & Bearings: Crown transmission small parts rebuild kits and heavy-duty input shaft bearings.
  • Shifter Hardware: Factory-style replacement manual shift knobs and inner lower rubber shifter boots by Crown.
  • Military Authenticity: canvas-leather exterior shifter boots in Olive Drab or White complete with retaining rings.
Jeep Willys MB 1941-1945 T84 3-Speed Manual Transmission exploded drawing with number labled parts highlighted

Output Shaft Bearing SR4 Input Shaft T84 Overdrive T85 Transmission Jeep CJ / SJ / Willys (41-83).
Output Shaft Bearing SR4 Input Shaft T84 Overdrive rear T85 Transmission Jeep CJ SJ Willys 41-83
Output Shaft Bearing for SR4, Input Shaft Bearing T84 or rear Overdrive Bearing T85 Transmission.
73,90 EUR
incl. 19% tax excl. Shipping costs
shift knob Dana 18 transfer case or T84 transmission. Jeep Willys MB, Ford GPW, CJ2A CJ3A CJ3B CJ5 CJ6 (1941-1971)
Shift Knob Transmission T84 Transfer Case Dana 18 Jeep Willys 41-71
Shift Knob Dana 18 transfer case, T84 transmission, Willys MB & CJ 41 - 71.
7,90 EUR
incl. 19% tax excl. Shipping costs
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Vintage Drivetrain Precision and Strength: Willys MB T-84 Transmission Solutions.

The Warner Gear T-84 three-speed manual transmission is the defining drivetrain component found behind the Go-Devil flathead engine in the 1941–1945 Willys MB military Jeep. Renowned for its ultra-compact casting, it was engineered for maximum simplicity and quick battlefield replacement under harsh wartime conditions. Today, this vintage manual gearbox requires targeted mechanical attention to counteract decades of storage or heavy convoy loads. Popping out of gear under trail articulation, severe main shaft bearing whine, or sloppy shifter linkage play are common milestones during any frame-off restoration. Our specialized online inventory features professional-grade replacement hardware to successfully rebuild and seal your vintage transmission.


Museum-Grade Quality and Period-Correct Hardware: Crown & More.

For full-scale mechanical restorations of your internal gear sets, we stock highly detailed transmission small parts rebuild kits from Crown Automotive, packed complete with all essential thrust washers, snap rings, and needle rollers. Eliminate input shaft slop permanently with a premium replacement input shaft bearing.
To successfully recreate that authentic 1940s dashboard experience while sealing your cabin from trail debris, explore our unique selection of floor closures: we stock official reproduction leather-canvas shifter boots available in classic Olive Drab or convoy White by MD Juan. To prevent trail silt and water from contaminating your internal shifting mechanics from beneath, pair the assembly with the heavy-duty inner lower rubber shifter boot from Crown, secured tightly to your floorboards using the exact-fit steel retaining ring. Our comprehensive range is finalized by factory-correct replacement manual shift knobs.


Expert Support for Your Historic Willys MB T-84 Rebuild.

Overhauling a vintage manual gearbox and matching blocking ring clearances requires absolute mechanical accuracy. Our outstanding customer service is here to guide you through selecting the correct internal gears, thrust washers, and small hardware shims tailored to your specific wartime production specifications. With our fast shipping, your transmission components will arrive quickly, keeping your classic Willys MB functional and convoy-ready.