Borg-Warner SR4 is a manual gearbox from Borg-Warner. The Society has 3 vehicles on file with it, 3 with a source we opened and 0 still leads.
AMC
| Vehicle | Years | Shift pattern | Gearbox source | Members |
|---|---|---|---|---|
| AMC 1978 AMC passenger cars AMC 1978 SR4 4-speed (HR1 with the 2.0 L four) [1]Applies to: Six-cylinder (optional 4-speed) | 1978 | 4 speed, reverse top left | Verified |
Ford
| Vehicle | Years | Shift pattern | Gearbox source | Members |
|---|---|---|---|---|
| Ford Mustang Mustang II (2nd gen) 4-speed manual (2.3L four, 2.8L V6; V8 availability by year not checked) [2] | 1975-1976 | 4 speed, reverse bottom left | Verified |
Jeep
| Vehicle | Years | Shift pattern | Gearbox source | Members |
|---|---|---|---|---|
| Jeep CJ-5 / CJ-7 (SR4) SR4 4-speed Iron Duke I4 with SR4 close-ratio 4-speed [3]Applies to: CJ-5 1980-83, CJ-7 | 1980-1983 | 4 speed, reverse top left | Corroborated |
Research notes
Caveats and conflicts (1)
- Maker comes from Wikipedia, not the manual. The standard 3-speed was the 150T.
References
- Service manual. 1978 AMC Technical Service Manual Vol. 2: 'Model SR4 4-Speed Transmission' used with six-cylinder engines only; Wikipedia AMC list: 'SR4 | Borg Warner'. [link]
- Service manual. Part 16-28 'Applies to Mustang Only' and the decal key says code 6 is the four-speed RAD, SR4 - Borg Warner. [link]
- Wikipedia. Wikipedia: SR4 close-ratio 4-speed with the Iron Duke 1980-83; SR4 listed for the CJ-7. [link]
Categories: Gearboxes | Borg-Warner
This page was last edited on November 11, 2026. Gearbox codes change by year, engine and market. Send a correction.