Skip Wolfe

Am in a fairly urgent need of a front right (passenger) 928 GT caliper.

Skip

AO

No difference between GT and S4 calipers. Nicole has a set for sale.

JHowell37

Why do you need a caliper? If it leaks, you can rebuild it with minimal effort and cost.

Richard S

I have a new one, never mounted. Can't remember if it's left or right side. I'll pull it out and let you know tomorrow.

Rich

Nicole

What model year? 1990 and later have lettering embedded into the coating, while earlier versions have raised lettering.

Vlocity

Skip

928 International is showing used in stock for $150.00.

Linky...http://www.mailordercentral.com/928i...352%20421%2002

I was told that you don't need brakes for Nelson Ledges.

Ken

shaaark89

thats a rear one dude

Vlocity

Damn....my bad.

http://www.mailordercentral.com/928i...351%20422%2003

Corrected link. Sold as pair only.

Ken

Landseer

Do the S4 calipers have the bleeder screws on the opposite side from the 951 version of the caliper?
Or are they the same orientation?

AO

DOn't know what you mean. There are 2 bleeder screws on the S4 calipers (front and rear).

AO

Nicole is right. The casting changed in 1990, eliminating the raised lettering. But the specs are the same.

terry gt

Don;t the later GTs have diffrent piston sizes ? than the S4s ?

AO

Nope. GTS's have different sizes, but S4 and GT's had same piston sizes.

Nicole

I'm not sure about that - piston sizes also changed at some point - I would assume that was at the same time as the casting changes, but I could be wrong.

JHowell37

S4s and GTs had the same piston diameters but they made some changes at some point in '89. Prior to the change in '89 the pistons used a scraper ring dust seal and the sides of the pistons were flat. After the change, the pistons received a new dust seal and they had a groove cut all the way around for the seal.