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Old 01-04-2012, 09:12 AM
joe_padavano joe_padavano is offline
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Originally Posted by cal1320
Turbo Buicks, 83-84 Hurst Olds and 84-85? 442 Olds have a 8.5'' ring gear, posi, 3.73 gears and are a bolt in swap.
Not quite.

The 84 Hurst/Olds (not the 83) and the 85-87 442s came with a 3.73 8.5" axle. The 85-87 GNs (and possibly turbo T-type cars) came with a 3.42 8.5" axle. Those are the only bolt-in 8.5" G-body axles; all the other cars came with 7.5".
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