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4.10s or 4.11s for 2001 camaro ss??

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Old 10-23-2009, 11:50 PM
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Default 4.10s or 4.11s for 2001 camaro ss??

10 bolt rearend, 01 SS. How do I know if the gears are 4.10s or 4.11s? What size and how many teeth are there supposed to be on the ring and pinion? I want to buy a used set but need to know how to tell if its really 4.11s?
Old 10-23-2009, 11:58 PM
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4.10 are for a 10 bolt
Old 10-24-2009, 12:15 AM
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This thread is funny.

4.11 is a gear ratio. Ratios are obtained by dividing one number by another, related number, hence 4.11:1 or 3.73:1. Count the teeth on the ring gear and divide by the teeth on the pinion...
Old 10-24-2009, 08:36 AM
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For the stock 10 bolt here are the gear tooth counts:
ring pinion ratio
41...12.....3.42
41...11.....3.73
41...10.....4.10

If you take off the rear cover (and don't feel like counting teeth) you
can see it's also stamped into the ring gear. Look close and you can
see 12:41 in this pic of my 3.42's:

Old 10-24-2009, 10:49 AM
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Thanks alot you guys
Old 10-24-2009, 12:17 PM
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i believe 4.11's have 37 ring and 9 pinion. This makes the teeth bigger and stronger than 4.10's



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