I was going to post on this very subject. Last weekend a friend & I replaced his shocks, tie rod ends, changed the trans & engine fluids & rebuilt his brakes. He got his front & rear brake kits from Vertex. One kit contained parts for 2 different size calipers, neither Porsches. He went to Olympic of Eisenhower Ave for replacements. He got 1 WRONG rebuild kit & 2 wrong hardware kits. Also, ½ of the new pad retainer clips broke. All had proper parts numbers on boxes, or bags but dust covers, springs, seals or something else was wrong w/each.
Word to the wise - keep the best of the old, use it to verify parts before the tear down