***7.25 brakes on 8.75 rear-end?*** "SOLVED"

DoctorDiff said

Unfortunately, small bolt pattern 7.25" backing plates will not bolt to an 8.75" rearend.

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i second this

just tried a few months ago to put my 69 9" 7 1/4 drums on a 70 8 3/4. the patterns look the same, sub the extra bolt, but the 7 1/4 bolt to bolt is just the right size to make drilling the backing plates dangerous.