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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#23944 03/05/2004 4:16 AM | Joined: Mar 2004 Posts: 9 Member | | Member Joined: Mar 2004 Posts: 9 | Tony I have the same tranny and o'drive in my 61 Apache with a built 261 (272 now). I have 4:11 gears and in O'drive I can flat haul the mail but 30% is a bunch.With 4:11's at 60 mph. your turning 3000 rpm. So you're turning 2600 at 65 sounds more like 3:73's and if that's what you have and 3:36's make it even worse I doubt you're going to like what you get. I found that 4:11's and a 30% o'drive are about perfect.Most O'drives today are 17% because the cars can't deal with any more. Good luck. | | |
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