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Mod | | | Forums66 Topics128,072 Posts1,055,904 Members48,429 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jul 2008 Posts: 6 New Guy | | New Guy Joined: Jul 2008 Posts: 6 | Also posted my follow-up on other sites;
Just for giggles--- In desperation I called the local GM dealership and spoke to their parts guy. Gave him the info posted above... told him it was a 12 bolt w/six lug axles.Told him I thought 70's era.
He said he didn't have a book listing those numbers but could call GM and would get back to me.
Called me back about thirty minutes later and said " your differential is a 10.5" ring gear 3.73 ratio out of an 81-90 one ton truck or an 81-93 panel"
Ok I'm not real bright but there is NO WAY this thing has a 10.5" ring gear.
I am going to pull the cover and try to get the numbers off the ring gear.
Anyone have or have access to a Hollander interchange book????
Thanks!!!!!!!!! | | |
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