BOLT WHEEL HUB LH THREAD
WOA473
Wheel Hub Stud Left Hand Thread
1/2"-20 thread
Wheel hub stud with left hand thread for mounting wheel to hub and brake drum. This stud is used on the left side of the vehicle, where the thread direction prevents the nut from loosening during driving. Essential component for safe wheel mounting according to original specifications.
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Thread 1/2"-20 left hand thread |
Design Knurled shaft for press fitting |
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Application Front and rear hub left side |
Per vehicle 5 pieces required per wheel |
Features
- Left hand thread (reverse thread) for left side of vehicle
- 1/2"-20 thread specification
- Knurled shaft for press fitting into hub/brake drum
- Suitable wheel nut spanner: 13/16" or 3/4"
- Sales unit: per piece
★ Precision component according to original WWII specifications. The left hand thread on the left side of the vehicle was a safety measure: the thread direction works with the rotation of the wheel, so that the nut cannot loosen during driving.
Application
Fits the categories as mentioned: CJ-2A, CJ-3A, CJ-3B, M38, M38A1. Used on the left side (driver's side) of the vehicle, both front and rear hub. Each wheel requires 5 stud specimens. The right side of the vehicle uses studs with right hand thread (standard).
Installation notes
Stud is pressed into the hub/brake drum with a hydraulic press — NEVER use a hammer, this will damage the knurled shaft. The stud goes through the brake drum and hub and protrudes for mounting the steel rim with the wheel nut. Note: left hand thread means that tightening goes anticlockwise. Always check that the stud is marked "L" for left.
Compatibility
IMPORTANT: Left hand thread is only used on the left side of the vehicle. The right side uses studs with right hand thread (standard rotation direction). Always check the marking on the head of the stud ("L" or "R") before removal. Not interchangeable with right hand thread specimens. Some vehicles have been converted over the years to entirely right hand thread — check this before ordering.
Historical context
WWII-era jeeps used both left and right hand thread wheel studs: left on the left side, right on the right side. This was a safety concept from the early automotive industry, where it was assumed that the thread direction prevented nuts from loosening due to wheel rotation. Later this proved unnecessary and the industry switched to exclusively right hand thread.
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 13 - WHEELS CJ3A, GROUP 13 - WHEELS 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 (early) | 1956, 1957, 1958, 1959 |
| 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-3B | 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968 |
| 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)
