OIL AXLE HYP COMPOUND 1 LITRE
DIFFERENTIAL FRONT & REAR
Capacity: 1,2 litre
Change every 10000 km
Hypoid differential oil 1 litre
SAE 80W-90 or 90 EP GL-5
High-quality hypoid differential oil for front and rear axles of WWII military vehicles. Contains extreme pressure (EP) additives for optimal protection of hypoid gear transmissions under heavy loads. Suitable for use in spiral bevel and hypoid differentials.
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Viscosity SAE 80W-90 or 90 EP |
Specification API GL-5 |
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Application Front and rear axle differentials |
Content 1 litre |
Features
- Extreme pressure (EP) additives for hypoid gears
- Protection against wear under high loads
- Temperature resistant for varying conditions
- Protective oil film prevents metal-to-metal contact
- Suitable for heavy-duty applications
★ Specially formulated gear oil with EP additives for the demanding conditions of military vehicles with hypoid differentials.
Application
Front and rear axles of military vehicles equipped with hypoid differentials. The hypoid design (pinion gear below the centre of the crown wheel) always requires EP oil due to the sliding motion between tooth flanks in addition to rolling contact.
Installation notes
Fill the differential until the fill level is reached (fluid runs out of fill plug opening). Always check first whether the fill plug can be unscrewed before draining the differential. For limited slip differentials, a friction modifier additive may be required - test by taking a tight corner: if the rear axle chatters, additive is required.
Compatibility
Suitable for vehicles requiring SAE 80W-90 or 90 EP oil with API GL-5 specification. DO NOT use in gearboxes with synchromesh or systems with soft metals such as brass or bronze. For military applications where MIL-L 2105 C or D is specified.
Historical context
Hypoid differentials were introduced in the 1930s and required the development of special EP oils. This technology became standard on military vehicles from WWII onwards due to its more compact design and higher load capacity.
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 11 - REAR AXLE, PONT ARRIERE/REAR AXLE DODGE, AXLE FRONT EARLY 4X4|6X6, PONT ARRIERE/REAR AXLE DODGE EARLY, GROUP 10 - FRONT AXLE CJ2A, GROUP 11 - REAR AXLE CJ2A, GROUP 10 - FRONT AXLE CJ3A, GROUP 10 - FRONT AXLE - M38, GROUP 11 REAR AXLE DANA 44 3B, GROUP 10 - FRONT AXLE CJ3B
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 |
| 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 |
📐 Diagrams & technical drawings
From the original Technical Manual CJ2A_PL_1949 — Parts List — only for Willys CJ-2A / CJ-3A (1949)
From the original Technical Manual TM 9-1803B — Ordnance Maintenance — Power Train, Body & Frame — only for Willys MB / Ford GPW (¼-ton 4×4)








