US Gear was the only manufacturer that I know of that was making the 3.31. Tom's Differentials had them.
Recommended ring and pinion manufacturers
Hi. I’m ready to remove my 4.56 ring and pinion to get back to numbers correct 3.31
Anyone have an opinion on who’s aftermarket I should look at? Prices seem to bounce between high $200 and $800
currently has a 3 series carrier with a ring gear spacer. So i know the carrier will work. This rear was retrofitted with the 4.56’s in the mid 70’s
it’s a 67 chevelle 12 bolt posi
CF 1214.
N 3894939
3:31 posi
Dec 14 1966
Cast date L76
December 7 1966
thanks,
Rick
Anyone have an opinion on who’s aftermarket I should look at? Prices seem to bounce between high $200 and $800
currently has a 3 series carrier with a ring gear spacer. So i know the carrier will work. This rear was retrofitted with the 4.56’s in the mid 70’s
it’s a 67 chevelle 12 bolt posi
CF 1214.
N 3894939
3:31 posi
Dec 14 1966
Cast date L76
December 7 1966
thanks,
Rick
1 - 3 of 11 Posts
Yes, Tom has been gone for a while now. She has been having a little trouble keeping parts in stock. There were a lot of things that only Tom had, and I hope she is able to keep getting those parts.
1 - 3 of 11 Posts
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