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02-23-2014, 11:00 PM
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Registered User
Join Date: Feb 2014
Location: Ontario
Posts: 11
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1978 full-time 4x4. Is a 700r4 worth it?
Hello All,
I have a: 1978 Chevy Full-time 4WD NP203 Engine 350 sb Q-Jet th400 Front axle GM Corporate 10 bolt Rear axle is a 14 bolt 4.10 gears 35" tires I want to make any cost-effective changes I can for fuel mileage and DON'T want tbi or part-time 4WD. This points me to a 700r4 transmission. Problem is, based on my calculations I could get good cruising RPMs (60mph @ 2200) from 3.73 gears in my th400. This is a project truck and not drive-able yet, so I have no idea what the MPG is currently. I would be totally happy with 12-15MPG. What would be the preferred transmission and gears? Thanks. |
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| 14 bolt, 350 sbc, 700r4, mpg, th400 |
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