You will only find 2 sizes available, 7 & 7.5" although there was a 6.5" and a 9" motorsport one.
The Haynes will take either 7 or 7.5
You will only find a 3.6 or 3.9 LSD.
For your R1 engine a 3.38 would be better
You can fit an LSD unit in to the 3.38 or take the crown wheel and pinion from the 3.38 and put that in the LSD diff
Last edited by snapper : 24th September 2010 at 07:43 AM.
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