 Mismatched front calipers on 911 SC suspension swap – help identifying? |
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| Nana's_914 |
 Oct 3 2026, 07:09 PM
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Member  Group: Members Posts: 118 Joined: 27-October 06 From: San Diego, CA Member No.: 7,100 Region Association: Southern California  |
My 914 has front suspension swapped over from a donor '78 911 SC. The left front caliper recently started dragging hard, and when I pulled things apart I noticed the two front calipers don't match.
They share the same bolt pattern, pad size, and hose connections, but the castings are numbered differently. On closer inspection the center spacing (the gap between the halves) is also different, and the right caliper seems too wide for its rotor. Right side: ATE, halves stamped 25G and 26G, center spacer about 11 mm Left side (the one dragging): one half stamped ATE 281, the other half unmarked, with squared-off edges instead of the smoother blended shape of the other castings, center spacer about 7 mm Both rotors measure about 20 mm thick. Can anyone help me identify what I have, and which one (if either) is correct for this setup? Photos attached.     |
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Posts in this topic
Nana's_914 Mismatched front calipers on 911 SC suspension swap – help identifying? Oct 3 2026, 07:09 PM
bdstone914 Oops Oct 3 2026, 09:04 PM
bdstone914 You have one early A caliper and one later A style... Oct 3 2026, 09:05 PM Nana's_914
You have one early A caliper and one later A styl... Oct 3 2026, 09:34 PM  |
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