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Old 04-05-2006, 07:55 PM   #1
Mcgwirejh
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gear ratio help?

can anyone tell me what gear ration i have by the number stamped on my ring gear in side the rear end here is the number 1235124 15 41 3 82
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Old 04-05-2006, 09:44 PM   #2
68Stepbed
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Re: gear ratio help?

2.73:1
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68 C10 stepside, LS1/700R4, TCI Engineering suspension system
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Old 04-05-2006, 10:19 PM   #3
Mcgwirejh
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Re: gear ratio help?

posi or limtied slip
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Old 04-06-2006, 01:18 AM   #4
jimfulco
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Re: gear ratio help?

The "15 41" is the tooth count of the pinion gear & ring gear, respectively. Divide 41 by 15 & you get 2.73. The "3 82" means it was made in March of 1982.

Look inside the open part of the carrier & see if you see a rod about 5/8" in diameter & 4 intermeshed gears. If that's all you see, it's not posi. If you see 4 or 5 coil springs or an S-shaped flat spring between the two side gears, it's posi. If you see the picture below, it's a Gov-Lock, which is not so good.


Last edited by jimfulco; 04-06-2006 at 01:19 AM.
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