Quote:
Originally Posted by MKS427
Eric,
The gearing is different from trans to trans, so you will want to evaluate the rear gears too, or you will top out in first quick.
Assuming 26.5" tires
Toploader 2.32 1.69 1.29 1 3.55 or 3.73
TKO-500 3.27 1.98 1.34 1 0.68 ~ 3.08
TKO-600 2.87 1.89 1.28 1 0.82 0.64 ~ 3.27
Good luck.
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The TKO-500 comes in two OD gearings, one at 0.68 and another at 0.82. The lower ratio will help your mileage more IF your differential and engine torque curve work well at cruising speed. I went with 0.82 on my new FE-powered car and love it--crappy mileage, but a great OD gearing with my 3.31 rear end and 27" tires. I have 0.68 on my SBF-powered car and mileage is definitely better, but I need to be cruising at 75 or above for the motor to be in the power band. Of course that could be helped with a different cam and intake. Lots of roads to Rome...