Quote:
Originally Posted by BonzoHansen
Sliderule, for the record all 2nd gens got 8.5" 10-bolts, except some 1970s that got 12 bolts. I don't know how long the 8.2" continued on in Novas and other cars, but I know the Novas changed over to 8.5" at some time because people get them out of 68-74 Novas (and its rebadged cousins) for 1st gens. I'll see if I can find that info.
Also:
1st Gen (67-69) Rear Measurements:
*Total width is 60 inches
*Spring perches are 42 1/2 inches center to center.
2nd Gen (70-81) Rear Measurements:
*Total width for the rear end is 61 inches.
*The pinion is offset 1/2inch to the right from center.
*The spring perches are 45 1/4 center to center and have about 5 to 6 degrees of angle down in the front with the pinion level.
Anyone have the measurements on 3rd & 4th gen rears handy?
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Thanks Scott! I know GM did different combinations, wasn't some of it based on car wieght and engine? Back in the 70s I was a pure MOPAR guy, All we did was look for 440s with the Dana 60s! Ahhh,,, the good old days........... 
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93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
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