Does anyone have any info on installing Crown Vic disc brakes in the rear of an XJ? I have read a lot of information on this site as well as many others on how to do a disc conversion but none make any reference to discs from a Crown Vic. Does a Crown Vic have rear discs or would I be taking the fronts from it? The reason I want discs from a C.V is ZJ units in my area are hard to find at the junk yards. Thanks.