Caliper piston size - Does it matter ?

[Minimad5]

Originally Posted by Steve940estate

Without knowing the exact spec of the OP's car it's silly to just make a general comment without pointing out any problems that could arise.

1989 760 V6 Estate.
I've ordered a set of 38mm calipers anyway, so we'll see how things go

[Alasdair1]

May need a new set of retaining bolts as well and some thread lock. Mine were pretty badly rusted but managed to get them off eventually. Thought I might as well replace them while I was changing the discs pads calipers etc.

Alasdair

[classicswede]

Originally Posted by Minimad5

1989 760 V6 Estate.
I've ordered a set of 38mm calipers anyway, so we'll see how things go

36mm is most common on 740 sal
38mm on 940 sal
40mm is most common on estate models.

I doubt yours would have been 36mm but more likely 38 or 40mm versions