i have just brought a locost chassis and am planning to put a r1 engine in it eventully have read that the best diff to use is a sierra 3.62 just not sure how much of a difference is if i get one with a lsd like the ones on a xr4x4 i think or just a normal one am after a donor now also do a sierra sapphire have the same running gear as a sierra any help would be greatful thanks adam

lsd - would that be 'high' ratio

what do you mean high ratio i aint too clued up on these and there seems to be so many different ones out there

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Originally posted by adam1985
what do you mean high ratio i aint too clued up on these and there seems to be so many different ones out there

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You can get 3.92 LSD's too - but I think these are too 'tall' for a bike engine...

James