Quote:
Originally Posted by chevy_mike
I believe the two different rear ends were based on years. Typically shown as 67-70 and 71-72. I can only give you the measurements from the inside of the brake backing plate mounting flanges, my '68 was 67" and the '72 was 68.5". Sorry I don't have the outside, drum to drum mount.
There is no difference if fleet or step side, just the year differences.
Hope that helps.
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68.5"??? inside of the backing plate to inside of backing plate on the 71 in my driveway and the 71 in my guarge its 58" (maybe 58.5", if i go end of axle flange to end of axle flange)....