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Old 09-21-2009, 11:01 AM   #1
cochino12
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3:73 truck gear set

Gear set for a 12bolt 3 series carrier, these are new never installed. $120 + mail

part #49-0072-1
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Last edited by cochino12; 09-23-2009 at 06:17 PM.
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Old 09-22-2009, 07:55 AM   #2
Hertzdaddy
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Re: 3:73 truck gear set

Doesn't 3.73:1 fit a 4 series? Or is this a special gearset designed to fit a 3 series?
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Old 09-22-2009, 09:56 AM   #3
rod86
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Re: 3:73 truck gear set

wat year had which series carrier?
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Old 09-22-2009, 10:25 AM   #4
cochino12
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Re: 3:73 truck gear set

Quote:
Originally Posted by Hertzdaddy View Post
Doesn't 3.73:1 fit a 4 series? Or is this a special gearset designed to fit a 3 series?
Quote:
Originally Posted by rod86 View Post
wat year had which series carrier?
does this help?

http://www.richmondgear.com/catalogpdf/catpg11.pdf
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Old 09-22-2009, 12:26 PM   #5
Hertzdaddy
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Re: 3:73 truck gear set

First of all I assume we are talking about the 12-bolt truck diff. Series 2 fits up to 2.73, series 3 fits up to 3.42 and series 4 fits 3.73 and higher. Its not related to the year.

In some cases a special set of gears can be made to fit the next lower series carrier. Or a shim can be used on the ring gear.

Here's a link for the carrier breaks in ratios as well as a lot of other good info.

http://www.ringpinion.com/DiffDetail...%26DiffID%3d34

Eric
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