you want them on the opposite side of where the hard line/hose bracket is just like the factory setup. IF you have to rear mount them because of sway bar clearance problems all is well if your brackets are in the front(I dont know B bodies) but if the bracket is in the rear & using a rear mounted caliper it MAY take a custom hose. With the tires on just go from lock to lock & check for clearance/interference. Other than that fit/function/alignment is the same. EDIT since you already have the smaller 10.87" setup for sure checkout some aftermarket pads & ask for 76 dart calipers for the bigger bores to get more front bias & follow their breakin procedure. I've been in vehicles where they took the time to do the breakin for the pads & it's quite a difference in stopping power.