3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

rear end gears

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Old 06-21-2004, 01:00 AM
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rear end gears

my 87 was 2.8L stock with the 700r4 tranny. I don't have rpo codes because I swapped the interior out in 2000, does anyone know what gearing these cars came with?

I'm probably only going to be pushing ~375 rwhp after I'm completely finished with the new engine components(stock heads and intake on there now), and don't really want to take a big hit on a tougher rear end. I know the 10 bolts are pretty weak, would installing a posi unit or an upgraded gear set hold up, or am I destined to take the plunge for a beefy rear end?
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Old 06-21-2004, 07:39 AM
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All 87 2.8's came with 3.42 gears
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