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Old 04-24-2011, 08:48 PM   #19
72c10lover16
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Join Date: May 2008
Location: Laramie, Wyoming
Posts: 93
Re: does anyone offer an overdrive gear set for saginaw 4 speed with granny gear

well on the highway doing 75 i am doing about 3,000 rpms or a little more usually more. I think and overdrive would bring that down a little bit which would increase fuel mileage a little bit. I used to have a 72 2 wheel drive with a 350 and a 4 barrel quadrajet and i got 13 mpg
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