8.25 rear

ill confirm there strength too! a buddy with a 71 dart swapped in an 8 1/4 with 4.56 gears, i kept thinking he was gonna break that thing but after many trips to the track and have going the best of 11.0's with a 440 and 27.5 slicks its still not broken!! I havent bad mouthed the 8 1/4 since. they are stronger than they get credit for!