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Old 04-05-2023, 02:53 AM   #12
Richard
Senior Member
 
Join Date: Dec 1999
Location: Southern California
Posts: 2,990
Re: Posi rear differential factory option?

Quote:
Originally Posted by Casper42 View Post
according to the 1972 Truck Price and Facts book, the K10 with 350 engine came with standard 3:07, optional 3:73 and that's all. Perhaps "special order" one could get other gears
Thanks, have not looked into this. The 3.73 gear option on my spid helps confirm your finding.
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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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