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Old 07-08-2015, 09:53 AM   #5
curvedglass
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Join Date: Apr 2014
Location: Pennsylvania
Posts: 186
Re: Question for the guys running 3.73's with a 6cyl and manual trans

Quote:
Originally Posted by vince1 View Post
I think 3.08 is a car ratio, in the trucks it is 3.07.

My original diff in my 66 was trashed so I put in a 3.73 from a 64. Teaching my daughter how to drive a standard (4Sp), she asked where is the next gear? I said that's it, which was met with peals of laughter.

Now it has a 3.07 that I like a lot more. If I were to use the 3.73 again it would have to have an overdrive in front of it. In your case a 5sp? Or maybe there are overdrive units available for the 3 sp?

If you look up RPM calculator you can get all that info by putting in tire size and axle ratio.
Copy that. I want to convert to a 700R4 at some point. One of the reasons for this truck was that you can swap in just about anything in to a Chevy. My knees are on the way out and the clutch leg is going first (
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