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Old 02-08-2019, 12:38 AM
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Smile 1969 Chevelle 12 Bolt

I have a factory CI coded 1969 Chevelle 3:73 12 bolt posi out of an L78 with a casting number of 3959038. My question is, would a 4:88 gear fit on this carrier or would I need to make changes?
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Old 02-08-2019, 12:57 AM
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If you are talking about the center unit, they sell thicker gears that fit the 3-series unit. The housing will fit any gear ratio.
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Old 02-08-2019, 02:14 AM
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The special thick 4.88 use to be kind of common, but this is the only one that I could find. https://www.ebay.com/itm/Richmond-4-...frcectupt=true
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Old 02-08-2019, 02:38 AM
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Thanks for the info. This will help.
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