Got an idea, please help!?
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Senior User
Joined: Apr 2004
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From: Bogota, Colombia
Got an idea, please help!?
Right now I have an I-6 300, 2WD, C-6 tranny Bronco w/3.08 stock rear gears. As far as fuel economy goes (for street, city driving mainly), although I've been suggested to get lower gears, that would probably decrease MPGs. Wouldn't it be better for me to get higher gears, say 2.7x , and get a bigger, higher HP engine to compensate for it (351W, 351C) in order to improve mileage and some performance as well?. Thanks! PS: Mine is a street truck: No hauling, towing or off-roading needed basically, I prefer speed!
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Joined: Apr 2004
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I have an E 150 with a manual OD trans and a 3.50 diff. That makes the final overall ration in OD about 2.8. I have 31 inch tires. My 6 pulls it ok over 45 MPH on flat ground. Will pull mild hills ok.
With a C6 you could probably move down to 2.79's and be ok, as long as you are in the no tow, no offroad zone. Doggy off the line though.
Do you have a 9 inch or 8.8? The 9 ain't called "the poor man's quick change" for nothing. Once you get the proceedure down, you can change it out every week depending on how you feel, if you want.
As far as tall tall gears with a bigger motor getting better MPG, good luck.
Or, you could go 3.73 or 4.10 and buy a Gear Vendor (or other fine brand, if there are any) overdrive for your C6 and away you go. Lots of low end grunt and top end to boot.
With a C6 you could probably move down to 2.79's and be ok, as long as you are in the no tow, no offroad zone. Doggy off the line though.
Do you have a 9 inch or 8.8? The 9 ain't called "the poor man's quick change" for nothing. Once you get the proceedure down, you can change it out every week depending on how you feel, if you want.
As far as tall tall gears with a bigger motor getting better MPG, good luck.
Or, you could go 3.73 or 4.10 and buy a Gear Vendor (or other fine brand, if there are any) overdrive for your C6 and away you go. Lots of low end grunt and top end to boot.
Elder User
Joined: Jan 2003
Posts: 851
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Originally Posted by calazo
Right now I have an I-6 300, 2WD, C-6 tranny Bronco w/3.08 stock rear gears. As far as fuel economy goes (for street, city driving mainly), although I've been suggested to get lower gears, that would probably decrease MPGs. Wouldn't it be better for me to get higher gears, say 2.7x , and get a bigger, higher HP engine to compensate for it (351W, 351C) in order to improve mileage and some performance as well?. Thanks! PS: Mine is a street truck: No hauling, towing or off-roading needed basically, I prefer speed!
