Well, we bought all new components from the dealer to test the "kit" out on our in-house 1987 Monte SS and we have yet to tie it all together. I do know the rotor bracket with the integrated drum/e-brake shoe bolts right up to the axle flange, and the brackets for hanging the calipers clear the shocks, too. The only issue that needs addressed is to make a set of E-brake cables for it which is no big deal. When it's done, we'll have dual piston calipers with 11" rotors and a E-brake shoe inside the rotor hub acting as a drum. We haven't figured exact cost until we know it will work. The guys over at NastyZ28 are trying it but are running into problems with the 2nd gen. staggered shock arrangement-not so with G-bodies though! -Jabin