GEAR IDLER TRANSFER
Intermediate gear transfer case
For Dana 18 transfer case
Intermediate gear for the Dana 18 transfer case. This gear is an essential component in the power transmission of the transfer case and subject to wear due to the continuous load of helically cut gear teeth.
|
Application Dana 18 transfer case |
Type Intermediate gear |
|
Function Transfer case power transmission |
Category Transfer case modification |
Features
- Intermediate gear for Dana 18 transfer case
- Replacement part for worn gear
- Critical component in 4x4 drivetrain system
- For restoration and maintenance of military vehicles
- Replace when worn or damaged
★ Essential component for a correctly functioning transfer case. Replacement is necessary when worn or damaged to prevent further damage to the transfer case.
Application
This intermediate gear is intended for Dana 18 transfer cases. The Dana 18 was used in military jeeps and civilian utility vehicles. Note: different versions exist with different shaft diameters (3/4", 1-1/8", 1-1/4") and tooth counts. Always verify the specifications of your existing part before ordering.
Installation notes
Replacing the intermediate gear requires disassembly of the transfer case. The intermediate shaft must be driven REARWARD out of the housing — never forward, this can crack the housing. Use a brass drift to tap out the shaft, never strike directly with a hammer. Check the housing for cracks around the shaft bore. Use bearing assembly grease to hold the needle bearings in place during assembly.
Compatibility
Note: Dana 18 transfer cases were produced in various versions with different intermediate shaft diameters and gear configurations. Early military versions used 3/4" shafts, later civilian versions 1-1/8" or 1-1/4" shafts. The gear must match the shaft diameter and the mainshaft gear. Check the Spicer number on your existing gear (for example 18-8-23) for correct identification.
Historical context
The Dana Spicer 18 transfer case was a groundbreaking design developed during WWII for the first fully mass-produced four-wheel drive vehicles. The compact, durable design remained in production for decades.
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 |
|---|---|
| Dodge | |
| Alle Dodge WC / M-serie | 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968 |
📐 Diagrams & technical drawings
From the original Technical Manual TM 9-808 — Technical Manual — only for Dodge ¾-ton 4×4 (WC series)








