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Old 05-04-2013, 10:36 PM   #2
LockDoc
The Older Generation

 
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Join Date: Aug 2006
Location: Montezuma, Iowa
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Re: Rear Axle Ratio Charts For 1967 - 1972 GM Trucks

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This is the last Chart. It looks like they are mostly readable. A couple of them may be a little blurry.

There is no guarantee of correctness or completeness (is that a word?) in any of these charts

Edit: I might as well add this chart to the thread too.

Rear Axle Ratios

Ratio 2.56:1 - Tooth Combination 41,16
Ratio 2.73:1 - Tooth Combination 41,15
Ratio 3.07:1 - Tooth Combination 43,14
Ratio 3.08:1 - Tooth Combination 40,13
Ratio 3.08:1 - Tooth Combination 37,12
Ratio 3.31:1 - Tooth Combination 43,13
Ratio 3.36:1 - Tooth Combination 37,11
Ratio 3.42:1 - Tooth Combination 41,12
Ratio 3.55:1 - Tooth Combination 39,11
Ratio 3.73:1 - Tooth Combination 41,11
Ratio 4.10:1 - Tooth Combination 41,10
Ratio 4.11:1 - Tooth Combination 37,9

The tooth combination numbers will be found stamped into the ring gear when you take the back cover off.

They may not all be for the trucks.


LockDoc
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Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

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Last edited by LockDoc; 11-08-2020 at 06:27 PM.
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