This is a  3/8″ thick  bracket for  swapping  a    srw dana  80 (dodge) to  disk brakes ,  may work with and gen  70s as well but has not been tested ..

Allows the caliper to  be mounted in  several  positions,  Does not come with hardware ..

Uses a   Rotor ACDELCO 18A2679    and a ~2018 GMC  3500 caliper  ACDELCO 18FR12465N (right)  , 18FR12466N  (left)

these are larger brakes then  the “stock” 01-2  disk brakes ..16.5 rims will clear .. but   17″+ is  recommended .

No modifications to the axle are needed , just bolt  them on to the  old brake drum  backing plates .

OFFROAD  USE ONLY .