need drivetrain suggestions on 84 chevy one ton

1984 CHEVROLET TRUCK
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TAZ3862
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have cab and chassis, would like to run a 350 with a 5 speed. would like suggestions on gear ratio on tranny and rearend. will b pulling 30' 5th wheel sporadically. want to run 70mph and get best mpg possible. will be pulling in hills. any info will be greatly appreciated. motor will b mostly stock.
Jul 27, 2012 at 10:21 AM
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ASEMASTER6371
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4 11 would be good gears to run in the differential. the trans should be an overdrive unit.

are you going to be using a 4 wheel drive unit??

Roy
Jul 27, 2012 at 10:46 AM
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TAZ3862
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yes,2wd
Jul 30, 2012 at 3:36 AM