[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?