Hello All heres a question i havent found an answer for yet.? i know the model A 37-48 spindle will allow the 53-56 for ford hub and brake switch with bearing change, but is it possible to use 28-31 spindle with the 53-56 Hubs.? i read something about using a bearing spacer or somthing to mount 37-48 juice breaks on 28-31 spindles if my rememberings right? anyone know about this.? so if you can use a spacer for for 37-48 Hubs could you use the spacer and the 53-56 Hubs to mount up the 35-56 brake setup.???..I hope that makes some since.? Cyric30