I am really surprised that you guys are not aware of the 9 inch granada/versalle swap. I 've seen this done in the 70's to 440 a-body bracket cars with little or no problems. The disk/drum to disk/drum dimension is 58.125" 1" wider than the stock a-body 8 3/4". Spring perch dimensions are excactly the same. I just resently installed one from a '78 lincoln versalle in my '67 barracuda for a total cost of about $400 with new rotors, rebuilt calipers, 3.50 trac-loc center from a early '70 1/2 ton, and a pinion snubber. Granted I got lucky finding a good used center section with the right size axle splines since the rear originally had 2.78 gears and was open. The brakes are no big deal, the rotors were about $80 a piece and the rebuild kit for the calipers were about $8 each. Over all, the cost of a 9" out of a granada, compared to the outrageous prices for a-body 8 3/4 sure-grip with a 5-4.5 bolt pattern, a 9" can't be beat. especially since it fits so easily and parts are so common.