Thread: 75 4x4 Rear End
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Old 06-09-2007, 01:24 AM   #5
Captainfab
60-66 Nut

 
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,254
Re: 75 4x4 Rear End

Aside from the aforementioned trailing arm mounts and panhard mount, that '75 12 bolt will be wider than the rear end in your '60. AFAIK it is about 1 1/2" wider. Also sometime right around '76 is when GM upgraded the rear brake shoes to 2 1/2" wide shoes, which would be a nice upgrade along with the better diff. FYI measuring from backing plate to backing plate isn't an accurate or proper way to measure the width of a diff. You should measure wheel mounting surface to wheel mounting surface, since that is what determines where your wheels will be.
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