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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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#74515 03/08/2007 7:37 PM | Joined: May 2005 Posts: 13 Wrench Fetcher | | Wrench Fetcher Joined: May 2005 Posts: 13 | I've got a 1961 3/4 ton rearend was wondering if anyone has any info, specs, where these posi or limited slip, gear ratios, any info would be helpful. thanks aaron | | |
#74516 03/08/2007 7:40 PM | Joined: Nov 2001 Posts: 1,517 'Bolter | | 'Bolter Joined: Nov 2001 Posts: 1,517 | Pull the inspection cover off,,that'll tell you everything.
Marty | | |
#74517 03/08/2007 8:02 PM | Joined: May 2005 Posts: 13 Wrench Fetcher | | Wrench Fetcher Joined: May 2005 Posts: 13 | Pulled the back cover off its a 10 bolt haven't found anything but one set of numbers thats eligible first 3 digits are 388 does this mean anything? | | |
#74518 03/08/2007 9:08 PM | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | That 388 is prolly just a part #, usually near this they stamped the # of teeth, but not always. If there is anything there except side gears & spider gears(like springs/plates), it is a posi/limited slip/locker whathaveyou. If nothing stamped, count the ring gear & pinion teeth to determine the ratio. Should be an Eaton, prolly 4.56. Brian | | |
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