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Re: rear coupe brakes
The spindles off the GTI have the mounting holes for the caliper and
it is a simple bolt on. Not big surprise considering the drum system
was essentially taken from a Rabbit.. The only difference between
Audi 90 and GTI is that the spindles have different number of
mounting points. Also the GTI rotor contains the bearing inside of
it while the 90 has a seperate rotor and bearing hub.
The adjustment of the brake proportioning was done by trial and
error. I was kind of scared to take it to any speeds that would tell
me if the front or rear locked first. To my surprise it needed only
> How did you adjust the rear proportioning valve on your Coupe, after you
> added the GTI rear discs? Trial and error, or did you have some tools
> to help you?
> I figured that I could use the brake proportioning valve to avoid replacing
> the master cylinder; I am glad that you have confirmed my theory.
> BTW, how did you deal with the need to mount the caliper carrier on the
> Coupe axle? I needed to get the entire axle, since it uses a larger
> mounting plate that contains bolt-holes for the caliper carrier. My brother
> might be interested in putting rear discs on my father's '82 Coupe, with
> the 100mm bolt patterned wheels.
1982 Coupe (430,000 km)
1984 4000s quattro (320,000 km under the wrench)
1970 Porsche 911E Targa (also under the wrench)
Who put my tools in the dishwasher?