- Based on a 71c model gearbox with 20mm wide gears
- All internals are new
- Fitted to a 71B homologated case - East African Safari Legal
- 3 Ratio Sets are available
- Complete gearshift available as an option
- Option1 Suits circuit racing - 1st 2.505, 2nd 1.76, 3rd 1.409, 4th 1.66, 5th 1.0
- Option 2 - 1st 2.818, 2nd 1.973, 3rd 1.470, 4th 1.192, 5th 1.0
- Option 3 - Most suitable for the Safari - 1st 3.321, 2nd 2.27, 3rd 1.601, 4th 1.24, 5th 1.0
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