GASKET UNDER OIL SEAL
WOA1134
Gasket Under Oil Seal Dana 18 Transfer Case
For output shaft bearing cap
Original gasket for the output shaft bearing cap of the Dana 18 transfer case. This gasket is fitted beneath the oil seal and ensures proper sealing of the front and rear output shafts. An essential component when overhauling the transfer case to prevent oil leakage.
|
Material Oil-resistant paper |
Transfer case Dana 18 |
|
Application Output shaft bearing cap |
Quantity required 2 pieces per vehicle (front + rear) |
Features
- Oil-resistant stamped paper
- For front and rear output shaft bearing cap
- Essential during transfer case overhaul
- Prevents oil leakage around output shafts
- Compatible with shim packs for bearing adjustment
★ This gasket is fitted between the bearing cap and the transfer case housing, together with any shims for bearing adjustment. Important: the thickness of this gasket is a factor in the end-play adjustment of the output shaft.
Application
This gasket fits all vehicles with Dana 18 transfer case as described in the product categories: CJ-2A (1945-1949), CJ-3A (1948-1953), CJ-3B (1953-1968), M38 (1950-1952) and M38A1 (1952-1963). Fits both front and rear output bearing cap.
Installation notes
Note: the thickness of this gasket affects the end-play adjustment of the output shaft bearing. During fitting, first deburr all gasket surfaces with a smooth file. Fit together with the correct shims. When using RTV sealant: apply thinly to minimise thickness variation.
Compatibility
Fits all Dana 18 transfer cases regardless of variant (3/4" early shaft, 1-1/8" or 1-1/4" intermediate shaft). Both bearing caps (front and rear) use the same gasket. During complete overhaul, this gasket is often supplied in a gasket & seal kit together with all other gaskets and seals.
Historical context
The Dana Spicer Model 18 transfer case was used from 1941 in WWII jeeps and remained in production until the early 1970s for civilian Willys and Jeep models. This robust 2-speed transfer case was renowned for its reliability, but had a tendency towards oil leakage with worn gaskets.
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.
ALL_CATEGORIES : GROUP 08 - TRANSFER CASE CJ2A, GROUP 08 - TRANSFER CASE CJ3A, GROUP 08 - TRANSFER CASE M38, GROUP 08 - TRANSFER CASE CJ3B
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 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
| Willys M38 | 1950, 1951, 1952 |
| Willys M38A1 | 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971 |
| CJ series | |
| Jeep CJ-2A | 1945, 1946, 1947, 1948, 1949 |
| Jeep CJ-3A | 1949, 1950, 1951, 1952, 1953 |
| Jeep CJ-5 | 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983 |
📐 Diagrams & technical drawings
From the original Technical Manual CJ2A_PL_1949 — Parts List — only for Willys CJ-2A / CJ-3A (1949)









