Re: 1963 K10 Axle Swap - When did the rear perch width get wider?
I just bolted in a 1973 k20, 8 lug, 14bolt into my 62 k10 frame with zero mods needed. I was expecting it to need the perches moved and was surprised when it didnt need it. I had to get a. 73-87 extended rear brake line for a 6 inch lift to reach the brake line on the frame. These old trucks sit high.
The matching 73 front dana 44 needed just a little modification but it fit
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