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LostMy65 · 07-18-2014, 10:22 PM

In my truck at present is a 3.90 with 26" tire.
it revs way too high at only 50mph.
I'm going to swap it to a 3.08 this winter.
If it bogs it down too much, I'll put the 3.73 I also have.

07-18-2014, 10:22 PM	#11
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,530	Re: What rear axle ratio's are you running In my truck at present is a 3.90 with 26" tire. it revs way too high at only 50mph. I'm going to swap it to a 3.08 this winter. If it bogs it down too much, I'll put the 3.73 I also have. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035