backing plates

[dart gt]

will 10 inch backing plates and drums off a 71/4 fit a 83/4.Going in 1967 dart.

 

[caferacerx]

backing plates wont fit, drums should fit

 

[Aaron]

If the backing plates are off a 1973 and up 7-1/4 with Large bolt pattern they will(and if you are upgrading the LBP). The axle tubes taper from 2.5 up to 3" at the ends where the backing plates bolt on. When I installed a 8-3/4 to replace my 7-1/4 on my Duster I re-used the 7-1/4 backing plates and bought new axles.