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09-21-2010, 05:48 PM
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#1 |
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Registered User
Join Date: Sep 2010
Location: louisville, oh
Posts: 7
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1968 Chevy C-10 rear end
I was wondering if anyone knows of a way to figure out what gears are in the rear end of my truck. I have a 1968 Chevy C-10 longbed with a 307 and a two speed power glide. I am looking a putting a new transmission in it but i would like to know what gears i have first.
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09-21-2010, 06:45 PM
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#2 | |
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AMERICAN IRON ADDICT
Join Date: Oct 2007
Location: MA
Posts: 299
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Re: 1968 Chevy C-10 rear end
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09-21-2010, 06:49 PM
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#3 |
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Registered User
Join Date: Sep 2010
Location: louisville, oh
Posts: 7
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Re: 1968 Chevy C-10 rear end
ok. thanks i will have to do that. Does anyone know what the stock rear end gearing is? Everything else on the truck is factory so i would assume that they didnt do anything to the rear end.
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09-21-2010, 06:52 PM
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#4 | |
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AMERICAN IRON ADDICT
Join Date: Oct 2007
Location: MA
Posts: 299
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Re: 1968 Chevy C-10 rear end
Quote:
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09-21-2010, 08:02 PM
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#5 |
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Grandpa in the rustmobile...
Join Date: Nov 2008
Location: Spokane WA/Viola TN
Posts: 11,422
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Re: 1968 Chevy C-10 rear end
my truck was 307 3OTT with 373 open rearend
and he^^^^ told ya how to do it right
__________________
John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4 |
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09-22-2010, 03:50 AM
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#6 |
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Registered User
Join Date: Mar 2003
Location: San Francisco, CA USA
Posts: 2,454
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Re: 1968 Chevy C-10 rear end
As already stated, 3.73 was the most common gear. However, you can find out what is actually in there without pulling the cover.
Jack one rear wheel off the ground, put the transmission in neutral, and the parking brake off. Put matching marks on the pinion yoke and differential housing. Turn the wheel exactly TWO revolutions and count how many times the driveshaft turns, estimating any fractional turn as closely as possible. That number is your axle ratio. If the wheel is difficult or impossible to turn, you may have posi. In that case, jack both rear wheels off the ground and turn either of them only ONE revolution. Count the driveshaft turns the same way as for an open rear. Ray |
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