[IN] 3.73 Posi gears for stock 10 bolt

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Old Jan 10, 2013 | 08:28 PM
  #1  
IrocZ'85's Avatar
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From: Lafayette, IN
Car: '85 IrocZ
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.73
3.73 Posi gears for stock 10 bolt

Hey guys,

I'm looking to change the gear ratio in my completely stock '85 10 bolt. It's got 3.23 currently and looking for 3.73 or something in that area. I believe this means I currently have the 26 spline stocker axles. Let me know if you have a true posi set of rear gears around ~3.73, I'd be interested in anything!

Thanks
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Old Jan 10, 2013 | 08:56 PM
  #2  
86blackiroc's Avatar
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From: Fayette County, OH
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Engine: that I like
Transmission: to restore
Axle/Gears: and enjoy
Re: 3.73 Posi gears for stock 10 bolt

I should still have a set of 3.73's, but I don't have a posi. If that's OK, I can get out the gears for pics.
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Old Jan 13, 2013 | 11:26 AM
  #3  
IrocZ'85's Avatar
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From: Lafayette, IN
Car: '85 IrocZ
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.73
Re: 3.73 Posi gears for stock 10 bolt

Originally Posted by 86blackiroc
I should still have a set of 3.73's, but I don't have a posi. If that's OK, I can get out the gears for pics.
That's ok, send pics my way for sure! Do you know what brand they are?
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Old Jan 13, 2013 | 07:04 PM
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86blackiroc's Avatar
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From: Fayette County, OH
Car: basic third gens
Engine: that I like
Transmission: to restore
Axle/Gears: and enjoy
Re: 3.73 Posi gears for stock 10 bolt



Both sets are factory GM gears, in great condition. $50 shipped for a ring/pinion. I also have an open 28 spline carrier (shown) that is missing the spider gears, as well as a Gov-Loc style locking diff (also shown) that takes 26 spline axles if I'm remembering right. The locker is not great for high performance use, but great for a daily driver.
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Old Jan 15, 2013 | 11:49 AM
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From: Cambridge City, IN
Car: 4-1991 1LE Formulas
Engine: LB9
Transmission: T5
Axle/Gears: 342
Re: 3.73 Posi gears for stock 10 bolt

I have a complete rearend for $400. New Richmond Gears might be a to dleiver to you this weekend. no brakes on rearend--Joe
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Old Jan 21, 2013 | 10:22 AM
  #6  
IrocZ'85's Avatar
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Joined: Aug 2007
Posts: 338
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From: Lafayette, IN
Car: '85 IrocZ
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.73
Re: 3.73 Posi gears for stock 10 bolt

Originally Posted by Joe Reece
I have a complete rearend for $400. New Richmond Gears might be a to dleiver to you this weekend. no brakes on rearend--Joe

Hi Joe, I think I'm going to pass on the entire rear-end right now, good luck with sale!
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