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04-12-2007, 10:38 AM
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glamoros piece o' lowlife
Join Date: Mar 2007
Location: Redford, MI
Posts: 1,164
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Re: Rack & pinion issues
Jim, yer thread should be titled "ring and pinion issues" as rack and pinion is something completely different and refers to steering systems. Anyhow, on yer question - you only need to swap the gears in yer rear end, no need to swap the complete differential or the whole rear axle. I believe the 8-lug 3/4 axles are the so-called "14-bolt semi-floater", which use 9.5" ring gear and have left the factory with 4.11 gear ratios. You might also have the 8.875" ring gear (12-bolt axle), tho I kinda doubt it, but even if you do have that there are 4.11 gears for it too. Really, look up yer build sheet (should be in the glove box), find the RPO code for the axle, and look it up here - there are also pictures and info on different GM axles on this website, which will help you identify what you have, so use them and report back with yer findings.
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The more I drink, the more I drink, the more I drink... diesel, reg cab, long bed, 4 across the rear, single stack, wooden stakes, and lotsa lights - the Hay Express |
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