well for a while now both my rear calipers have been shot, but lately they've just gone off the deep end, the damn things creak and groan so badly when I apply the breaks, and the handbrake (while slowly cruising), which is why i know its the rear calipers. thing is i dont know which i need and where the hell to buy 'em. pepboys and autzone and such is out of the question, i'd rather get functional older ones, but as i said i'm still looking. right now my rotors are 5 lug vented in the rear and front, i have 4 piston calipers up front and i assume single piston in the back. a store on ebay sells rear calipers but all of the ones they have are for 5 lug, solid rear calipers. my old rotors had vented rears also. the car is an '88 S4 gxl. for anyone who's bought new calipers before, where did you get them from... where would i go about getting new rear calipers that will actually fit on my car? would my best bet be buying used ones off the classifieds on here? the front ones are fine, the rear ones are ruined, i wouldnt mind plugging the damn lines because of how bad the noise is.

thanks for the help

 

Um, Mazda? Any dealer will have them, as well as the associated parts (best to replace the guide pins, rubber grommits, etc. at the same time).

 

well, i guess my real question is; is there a part number for the correct ones?