MB TRANSMISSION CASE
T84 Transmission Case for Willys MB / Ford GPW
Warner T84 gearbox case - original specifications for WWII 1/4 ton 4x4
Replacement transmission case for the Warner T84 gearbox as originally fitted to Willys MB and Ford GPW jeeps (1941-1945). The T84 was the standard 3-speed gearbox in all WWII 1/4 ton 4x4 trucks, with synchronised second and third gears. This case forms the core component for complete transmission overhaul or replacement of damaged original cases.
Application Willys MB (1941-1945), Ford GPW (1942-1945) | Type Warner T84J 3-speed transmission case |
Original number WO-A-1148 (Willys) / GPW-7005 (Ford) | Transfer case Combines with Dana 18 transfer case |
Features
- Case for Warner T84J 3-speed gearbox with top-mounted shifter Synchronised 2nd and 3rd gear, unsynchronised 1st and reverse Gear ratios: Low 2.665:1, Second 1.564:1, High 1:1, Reverse 3.55:1 Originally produced by various foundries including Frank Bros. Foundry Rubber-mounted on frame centre crossmember together with transfer case Intermediate shaft diameter 3/4 inch (specific to T84, not compatible with T90) Supplied with oil-retentie cup and countershaft washer pin Lower construction than T90 due to top shifter design - no floor plate modification required
★ Essential component for WWII jeep transmission restoration. Note: the T84 is not interchangeable with the later T90 transmission due to different intermediate shaft diameter and transfer case connection.
📖 From the Technical Manual
Specifications
- Type: 3-speed Synchronous Mesh Model: Warner T84J Gears: 3 forward + 1 reverse Lubrication: fill to correct level with specified transmission oil (GL-4)
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 | 1942, 1943, 1944, 1945 |
| 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)
