this is how mine are on the 1970 Detailed Disc Brake Swap Info http://www.tsmmfg.com/2493.htm http://www.yotascene.com/forums/tech-write-ups/rear-disc-brake-conversion-t1532.html
Yes did my 88 Extra Cab. Front upgrade to larger disk,12.9'' & 4 caliper set up & rear to single piston & 11.32" rotor w/ e-brake. You can do a search for all the info & photo's.