Some of the A-series 5-speed transmissions use a "dogleg" shift-pattern (aka 'reverse shift') and others use the standard shift pattern. The doglegs are pre-1980.
Dogleg:Why a dogleg pattern? In racing, 1st isn't used much, but the 2-3 or 4-5 shift needs to be quick.
R- 2 4 1 3 5
The standard pattern is better for city traffic, where the 1-2 shift is used repeatedly.
1 3 5 2 4 R
- 1970-1975 F5C56A (A12) is dogleg gearbox
- 1976-1978 FS5W63A (A14) is dogleg gearbox
- 1978-1979 FS5W60L is dogleg gearbox
- 1980-2008 FS5W60A is standard pattern
Also see: Shifter
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