SLEEVE, SECOND AND HIGH SPEED SYNCHRONIZER
Synchroniser hub second and third gear for T-84 gearbox
Original part for Willys MB and Ford GPW (1941-1945)
Synchroniser hub (inner hub) for the second and high speed synchroniser in the Warner T-84 three-speed gearbox. This crucial component is part of the synchronisation mechanism that ensures smooth shifting between second and third gear. Suitable for Willys MB, Ford GPW and M201.
Application T-84 gearbox, second and third gear | Vehicle Willys MB, Ford GPW (1941-1945), M201 |
Technical Manual TM 9-1803B section 6-7 (Transmission) |
Features
- Synchroniser hub (inner hub) for T-84 gearbox Part of second/high speed synchronizer assembly Works together with synchronisator sleeve, blocking rings and shifter plates Original specifications according to TM 9-1803B Replacement part for Warner T-84 transmission Requires correct assembly with snap ring according to TM instructions
★ Essential component of the T-84 synchronisation mechanism. The synchroniser equalises the speed between the gear wheels and enables smooth shifting between second and third gear without double declutching.
📖 From the Technical Manual
Mounting
- Slide the synchroniser hub onto the main shaft with the long end of the hub facing forward Install the snap ring to secure the hub Place blocking ring in the synchroniser Check that shifter plates are correctly positioned in the grooves of the hub Verify that the synchronisator sleeve moves smoothly over the hub
Specifications
- Transmission type: Warner T-84 (3-speed) Synchronises: second gear (ratio 1.564:1) and third gear (direct drive) Assembly: main shaft with long end of hub facing forward Required: snap ring, 2x blocking rings (brass), 3x shifter plates with springs
This part is intended for the restoration of historic military vehicles. Fitting, aligning, deburring or reworking is part of that work and is inherent to the nature of these goods. Dimensional variation also exists between original vehicles.
Installation requires technical knowledge of the vehicle. Unsure whether this part suits your version? Ask us before purchase at info@willys.be.
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| Willys MB | 1942, 1943, 1944, 1945 |
| Ford GPW (early) | 1942 |
| Ford GPW | 1942, 1943, 1944, 1945 |
| Hotchkiss M201 (early) | 1956, 1957, 1958, 1959 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
📐 Diagrams & technical drawings
From the original Technical Manual TM 9-1803B — Ordnance Maintenance — Power Train, Body & Frame — only for Willys MB / Ford GPW (¼-ton 4×4)









