The Dodge Challenger Message Board

What details do I have to give a vendor if I want to order a new Suregrip for my 8 3/4" axle? Is it down to what ring and pinion I want to use? Currently got 3.55,I've seen some casting numbers on the housing, do I need to quote them?
Might ring Hausers cos they are just up the road from me, but often expensive, so wanted to order from Summit or similar Maybe even a used one from Duncan Watts, rebuild kits are cheap enough

casting numbers on the housing ade, i.e will end in something like 742,489 etc wont matter about ring and pinion

Nice one Jim, I'll get checkng