what rotor with 951 calipers on late ali arms

[boygenius]

My trailing arms have the 951 prefix on their part number so I would assume that they are the same as the turbo. But there is also a 302 prefix number on the trailing arms. I think though that the N/A and turbo arms are the same and that the onlly difference is the caliper and the rotor. I'm not really sure though. Let me know if you need my N/A parts to get you to dyno day.

[zen]

you are correct that the arm is the same and the brakes are different. still don't know about the diameter clearance for the larger rotor, but did find out that the swap is straight forward and caliper spacing is required (great , more custom work on a short schedule). info is here .

[boygenius]

Looks like you only need the rotors + calipers + the spacers. I wonder if the spacers are factory???

[boygenius]

I think the spacers are nothing more than washers. Does anybody have a 1987 and later 951 that could take a look under their car. See what the caliper spacers look like. :idea:

[zen]

looks that way. he is looking up part number and dimensions for me. didn't realize they ever did that from the factory.

[boygenius]

If it's just some washers you could just go to your local hardware store, Or shell out the money for the factory ones. I always like using factory parts, I even ordered the porsche lock washers and bolts for my sway bar.

...if you use 951 calipers then you want to have 951 rotors
...if you use 944 calipers then you want to have 944 rotors