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Rear caliper questions, piston diameter? 900 1993

Hi all, the car in question here is a 93 944T, my girlfriend's car. ABS, no IRS. The left rear caliper has a seized piston, and I want to get a rebuilt unit.

The calipers on the car have no clear markings. There is a 3, but nothing after that. I measured the pistons to be 34mm diameter. This was the exposed portion of the piston. I don't know if it has a greater diameter where it goes into the bore. The pistons have straight sides, right?

I called up Autozone and they asked me if they were 38 or 40mm pistons.

The IPD catalog shows a 34mm piston for 760, but only up to 92. They don't even list any rear calipers for the 940. RPR shows just one part for the 93 940, but they don't say what diameter it is.

What is it supposed to be??? I searched the archives and I found 2 other posts that asked similar questions, but neither one had any replies. I hope this one doesn't get the same fate!

Thanks for any help!
Greg Wong






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New Rear caliper questions, piston diameter? [900][1993]
posted by  wongg3  on Thu Mar 28 14:12 CST 2002 >


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