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Mod | | | Forums66 Topics128,157 Posts1,056,887 Members48,458 | | 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!
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#31092 02/22/2004 5:01 AM | Joined: Feb 2004 Posts: 1 Junior Member | | Junior Member Joined: Feb 2004 Posts: 1 | As a newbie is there any way you can tell if rear end is posi or non -posi except by the way the wheels move? Also I am trying to acquire a 4.11 gear and pinion for my 59 3/4ton. Does anyone know if the 59 3/4 tons came with a posi rear end or were they all non-posi? | | |
#31093 02/22/2004 6:43 AM | Joined: Jul 2003 Posts: 101 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2003 Posts: 101 | Search for "Detroit Locker". There's a bunch of posts on how to find 4.11's and posi's. I think it was from 67 to 72 where 3/4 and 1 ton trucks with automatic had 4.11's. These third members will fit your 3/4 ton. Detroit lockers were an option. I'm not sure what years. I was thinking you could still get them for that diff but another poster didn't think so. | | |
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