Rear calipers - ATE or Girling?

#1

After searching the message boards, I’ve seen a couple comments that all e30 rear calipers are ATE. Just wanted to get confirmation before ordering rebuild kit.

Looking at calipers with wheels on, fronts are obviously Girling, but rears only say “BMW” on side and “33” in middle.

Thanks in advance.

#2

ATE calipers use guide bolts to hold the caliper to the carrier, so it is easy to tell what calipers you have. They probably are ATE.

#3

If you use a hex wrench to remove your pads you have ATE. If you use a socket wrench you have Girling.

#4

thanks, appreciate the help.

#5

Someone more knowledgeable can correct me if I’m wrong, but I’m pretty sure you can only have ATE’s on the rear (there were no Girling rear calipers).