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67ChevyRedneck · 11-17-2007, 03:46 PM

3.08 gears.

If you're only hitting 45-50 mph on your way to work, an OD tranny won't do you any good.

But if you really want to go that route, a 700R4 with a 3.73 rear is a good combo.

For comparison I get 12.5-13 mpg consistently with a commute like yours and 16-17 mpg highway (I rarely drive more than 20% highway). I have a 350/700R4/3.73. Running around Greenville I almost never put the truck in OD (under 50mph.)

11-17-2007, 03:46 PM	#14
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: 700r4 install 3.08 gears. If you're only hitting 45-50 mph on your way to work, an OD tranny won't do you any good. But if you really want to go that route, a 700R4 with a 3.73 rear is a good combo. For comparison I get 12.5-13 mpg consistently with a commute like yours and 16-17 mpg highway (I rarely drive more than 20% highway). I have a 350/700R4/3.73. Running around Greenville I almost never put the truck in OD (under 50mph.) __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!