Rangers up to 1990 came with the 7.5 rear and after that 7.8 or 8.8 . All The brakes should just come off and swap over for a slight improvement at a low cost . Anyone upgraded their 7.5 w/o going to disc brakes ? Planning on staying 4 lug and upgrading the from brakes too w/GT parts .
Quote from a Ranger site "If your early Ranger Bronco2 has 9-inch drums, upgrading to 10" drums is a surprisingly effective alternative. Search the junkyard for either a later Ranger, or even easier an Aerostar to serve as a donor. " So this is a viable upgrade .