SHAFT INTERM GEAR DIA 19MM
WOA998
Intermediate shaft Dana 18 transfer case (19mm diameter)
For early Dana Spicer 18 transfer case
Intermediate shaft component with 19mm (3/4 inch) diameter for the Dana Spicer 18 transfer case. This shaft runs through the centre of the transfer case housing and carries the intermediate gear that provides power transmission between the main shaft and output shaft. Suitable for early versions of the Dana 18.
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Material Hardened steel shaft |
Diameter 19mm (3/4 inch) |
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Application Dana 18 transfer case (early type) |
Technical Intermediate shaft |
Features
- 19mm (3/4 inch) diameter for early Dana 18
- Runs through centre of transfer case housing
- Carries the intermediate gear (idler gear)
- Hardened steel construction
- Critical component for power transmission
★ The intermediate shaft is a critical wear component in the Dana 18 transfer case. The 3/4 inch version in particular is susceptible to wear with frequent use and often needs replacing during overhaul.
Application
This 19mm (3/4 inch) intermediate shaft fits the early Dana Spicer 18 transfer case as used in WWII military jeeps and early post-war jeeps. Larger diameters were introduced later (1-1/8 inch and 1-1/4 inch) for improved roller bearing support. Always verify the diameter of your existing shaft before ordering.
Installation notes
The intermediate shaft is inserted from the rear into the transfer case housing after the intermediate gear with roller bearings and thrust washers has been pre-assembled on a dummy shaft. Never use a hammer directly on the shaft — work with a copper or brass drift. The handbrake assembly must be removed for disassembly or installation. Check the housing for cracks around the shaft bore.
Compatibility
IMPORTANT: The Dana 18 transfer case has three different intermediate shaft diameters: 3/4 inch (19mm) for early versions, 1-1/8 inch for later models, and 1-1/4 inch for final production years. These three sizes are NOT interchangeable without modification of the housing, gear and bearings. Always verify which diameter your transfer case has.
Historical context
The Dana Spicer 18 transfer case was designed in 1940 and remained in production for 30 years. The original WWII version had a 3/4 inch intermediate shaft; this diameter proved susceptible to wear in practice, leading to later upgrades to stronger diameters.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
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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 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |