Re: what converts from 73-87?
I believe the headers will interchange/fit, thru 1987 (square body). The rear end in the '73 to '75's is supposed to be the same width as the '70-72's. 1960-69 rear ends are about an inch narrower.
However, 1973-up rear ends are leaf-sprung, not coil sprung. If your '72 is a leaf spring rear, probably no issues.
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Member Nr. 2770
'96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed.
'69 C-10 SWB; 350/TH400 - in limbo
The older I get, the better I was.
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