Reply to "CV Joint Conversion ?"

The Mark Williams Enterprises "kit" mentioned earlier does not use spacers/adapters. It has CV flange stub axles that replace the standard u-joint ZF stubs. The other end has companion flanges that replace the u-joint flange on the rear upright. It's a clean set up but ridiculously priced. I haven't checked lately but someone told me they want $5k these days for the full up kit and something equally ridiculous for the companion flanges. You can get M1 ZF stub axles from RBT for ~$350. There's no other source for the companion flanges other than Williams though I've heard at least one vendor is working on it. The broach is fairly expensive tool. If anyone out there has a set of companion flanges that adapt to the Porsche CVs, please drop me a line.

The rest of the pieces can be sourced fairly reasonably. In addition to picking up a few points in power to the ground loss, the smaller diameter axles can provide more exhaust clearance. You might be able to shed a little unsprung weight but this is probably a wash. I'd like to have my car equipped as such but there is plenty more performance bang for the buck to be had. Sort of depends what else you've already done. As Dave said, if you have altered the axle position, you may have more urgency.

Kelly