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Discussion Starter #1
Anyone running a th350c or th250c trans 2.41 rear end with a 350 motor what rpm r u running at 60 mph also 70 mph? With my new 3.08 gears my rpm seem pretty high at highway speeds. What rpms would i run at those speeds with a 700r tranny?
 

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Discussion Starter #3
I dont have a tach but it feels like about 3000 rpm at 60 what kind of mileage r u getting? And what rpm at 70 mph?
 

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Woody it doesn't look like you are running an overdrive tranny with those rpm's. 0.64 overdrive (which I think a 700r4 has) and a set of 3:23s, 225X55X16 tires gives you 2150 at 70 mph.
 

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464 you are correct no overdrive. Wish i did but more $$$$
Besides i dont drive on the freeway but 4/5 times a year when i go to dallas or belton. Thanks 464. :You_Rock:
 
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