Help identifying these calipers
 

Hi, I know it's quite difficult to tell the difference between a lot of the Porsche Brembo brake calipers so was wondering if there was any eagle eyed pelicans out there who could help identify whether these are 964, 944, 928, front, rear or what?

http://forums.pelicanparts.com/uploa...1452801199.jpg

http://forums.pelicanparts.com/uploa...1452801209.jpg

http://forums.pelicanparts.com/uploa...1452801220.jpg

http://forums.pelicanparts.com/uploa...1452801229.jpg

They are probably water cooled due to the location of the bleeds and smaller leading pistons. Of course the bleeds and feeds can be swapped.

The only way to tell if they are front or rear is by either measuring the pistons, fronts are all 36/40, rears are either 28/30 or 30/34

or measure the throats fronts will accept a 32mm rotor, rears accept a 28mm rotor w/ some work

They are older versions

Thanks Bill SmileWavy

On closer inspection I think they have 36/40mm pistons so presumably they are fronts.

They also have 20 2692 00 or it may be 20 2892 00 on them along with 87 in a circle so I assumed they were from a 1987 car, possibly a 944?