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Old 04-05-2023, 02:50 AM   #11
Richard
Senior Member
 
Join Date: Dec 1999
Location: Southern California
Posts: 2,712
Re: Posi rear differential factory option?

Quote:
Originally Posted by custom10nut View Post
Mine is currently a 3.73 one wheeler.
I was kinda wanting to find a complete Posi rear end, Rebuild it, and swap it with my current one.
BUT, if it’s more feasible to purchase a NEW Posi third member, put in a 3.23 Gear (for a little better Highway rpm), I’ll do that, since I’ll be tearing it apart anyway.
When you say “Higher Gears”, are you meaning going up in the number (as in 3.73 to 4.10), or the other way (as in going to 3.23)
There are other questions with every one answered.
3.73 carrier is cutoff for lower gears (numerically higher) A different carrier is required for higher gears (numerically lower) So.... if you have 3.73 and want a 3.23 and it is available a new carrier is required.
If you have the higher gears and wanted to go to 3.73 or lower there are some companies that manufacture gears with thicker rings allowing the use of the carrier.
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Richard
1972 K10 Custom Deluxe SWB Fleetside
My build https://67-72chevytrucks.com/vboard/...d.php?t=800746
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