I am currently designing a mid-engined car and will need to get some wide wheels on the back that are 19" to get enough ground clearance. However, using the sierra rear hubs I will have to shell out a fair bit for alloys that are upto the job (Ones on ebay are only ever go up to 18" )

So, my question is, does anyone know if there is a BMW rear hub that can bolt straight onto a sierra driveshaft? Then I could buy some BMW hubs, design around them and then have access to all the lovely cheap 18" 255 on the bay of e.

You could probably get some custom driveshafts made that have the correct splines on each end to connect to the sierra and bmw parts.

why do you need such stupidly big wheels to get enough ground clearance in something you're designing from scratch?

i'd look at the design of the suspension again before i started looking at new hubs and massive wheels.

tom

I have decided to use a rover v8 bolted to an inverted renault un1. This gives a ground clearance of, well, not a great deal. 18" wheels with a profile of 255/40 would give the perfect ground clearance for the current design. Being that size of wheel it would probably be a 8.5J and could hold larger tread should I drop a more powerful rover lump in the future.

I could of course chop the sump and seriously butcher the current bellhousing, but I thought planning for larger rear wheels wouldn't necessarily be a bad plan?

The drive shafts don't have to be horizontial you know?

I can't understand why the transaxle chosen would constrain the ground clearnance?

Cheers

Fred W B