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Mod | | | Forums66 Topics128,023 Posts1,055,367 Members48,420 | | 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!
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#46558 06/22/2005 2:26 AM | Joined: Apr 2005 Posts: 52 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2005 Posts: 52 | Is there any way of telling what the gear ratio is without opening up the diff? It is a 1966 C-10 long bed 2WD original motor was a 283 with a 4 speed.
Thanks | | |
#46559 06/22/2005 3:16 AM | Joined: Dec 2002 Posts: 571 Shop Shark | | Shop Shark Joined: Dec 2002 Posts: 571 | 2 Ways 1.) you can jack the rear up and count the revs of the pinion and the axle and divide 2.)Check the axle code. It's located on the passenger side of the axle toward the front of the truck about 3 " from the differential. It should be a 2 letter code begginig with H or J. Then go Here to decode. Good luck. | | |
#46560 06/22/2005 4:17 AM | Joined: Apr 2005 Posts: 52 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2005 Posts: 52 | HA code = 3.73
Thanks a ton!! | | |
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