Does anyone know if a FJ55 rear axle and a FJ60 rear axle are the same width? I'm thinking that the FJ55 and FJ40 are the same and the FJ60 is wider. Am I right? If they are the same width are they interchangeable or if not is the rear brake setup (backing plate, wheel cylinders etc. etc.) interchangeable. I'd like to go with the e-brake at the rear axle and full BJ60 running gear on the FJ55 rebuild.