i have 73 disc brakes with 15" rims.i want upgrade to the bigger rotor and caliper.will the bigger caliper mount to existing mounting bracket? spindle?.i know i will need the larger rotors and calipers but anything else?
Caliper is the same.
All you need is the bigger rotor and the larger caliper mounting brackets. Mopar 11.75" Disc Brake Slider Caliper Brackets
You won't even need to re-bleed your brakes, just swap the rotors and brackets, should be able to do it in about an hour if that.