New 3.73 and 4.10 GM gears for sale

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Old Oct 30, 2006 | 10:19 PM
  #1  
BIG_MODS's Avatar
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From: Detroit Suburbs
Car: 87 IROC
Engine: 5.3L
Transmission: Jerico
Axle/Gears: Aluminum 8.6 w/ T2R
New 3.73 and 4.10 GM gears for sale

I have 2 sets of gears for sale. They are both GM gears for a 3 series diff.


The 3.73 is new and never installed. $150 + shipping. This gear is on the left side of the picture.

The 4.10 was installed once but never ran. There is some handling damage to one of the pinion teeth, as can be seen in the picture, but won't be a problem if a correct pattern is used. Price Reduced to $100 + shipping. The pic below is a couple months old.


Both gear sets have some surface rust from sitting in my garage for a couple months. The rust isn't bad enough to cause any problems. The 4.10 is a little worse than the 3.73.

I accept paypal.

Last edited by BIG_MODS; Nov 16, 2006 at 10:42 PM.
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Old Oct 31, 2006 | 10:37 AM
  #2  
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From: Winnipeg Manitoba Canada
Car: 92 trans am/ 93 dodge spirit V6
Engine: L98 V8 - 350
Transmission: TH-700-R4
Axle/Gears: 3.23
can i put those in my 3.23s and keep the posi.. dont know to much about rear ends
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Old Oct 31, 2006 | 01:35 PM
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From: Portage, MI.
Car: 1986 Z-28
Engine: 350
Transmission: 700R4
Yup.
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Old Oct 31, 2006 | 05:10 PM
  #4  
BIG_MODS's Avatar
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From: Detroit Suburbs
Car: 87 IROC
Engine: 5.3L
Transmission: Jerico
Axle/Gears: Aluminum 8.6 w/ T2R
Originally Posted by dave-92gta
can i put those in my 3.23s and keep the posi.. dont know to much about rear ends
Yes, the 3.23 uses a 3 series carrier so these gears will bolt in using your existing posi.
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Old Nov 2, 2006 | 09:26 PM
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BIG_MODS's Avatar
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From: Detroit Suburbs
Car: 87 IROC
Engine: 5.3L
Transmission: Jerico
Axle/Gears: Aluminum 8.6 w/ T2R
bump
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Old Nov 2, 2006 | 10:22 PM
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From: Winnipeg Manitoba Canada
Car: 92 trans am/ 93 dodge spirit V6
Engine: L98 V8 - 350
Transmission: TH-700-R4
Axle/Gears: 3.23
and what one did you was was damaged? the 3.73 or the 4.10?
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Old Nov 5, 2006 | 05:32 AM
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From: NOR CAL USA
Car: 89 iroc-z 5.7tpi 350,
Engine: 5.7tpi 350,
Transmission: T-56
is this for a 3.5 in gear or a 3.75 ring gear?

9 or 10 bolt in easy terms
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Old Nov 16, 2006 | 10:41 PM
  #8  
BIG_MODS's Avatar
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From: Detroit Suburbs
Car: 87 IROC
Engine: 5.3L
Transmission: Jerico
Axle/Gears: Aluminum 8.6 w/ T2R
Sorry guys, I didn't see your posts till now.

They both are still for sale. They are for the 10 bolt axle 7.625". The 4.10 has the damage.

4.10 price reduced to $100
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