View Single Post
Old 05-15-2013, 08:19 AM   #7
gchemist
BAD BOW-Silverado XST
 
gchemist's Avatar
 
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
Re: rear end question

I run a '77 12 bolt in my truck. Gears are 3.08's. High gears but tires are on the small side. Towing definatly sucks with any amount of good weight. I can't complain of 18.5 MPG at 70!!

You will not find 3.42 in a 12 bolt. You'll have to add them. Common gears are 3.08s or 3.73 gears.
__________________
Gerardo a.k.a. Mad Chemist
Silverado XST videos
gchemist is offline   Reply With Quote