mileage from 4l60 to th400
#1
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mileage from 4l60 to th400
Assuming you change nothing between gear ratios/etc and go from a 4l60e to a th400 with say a 3k stall, approx. how much mileage is lost?
#3
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It wont bother me much, Ive been daily driving a th350/3.73 truck with mechanical secondaries for the last 3 years. Im just hoping to see any improvement, if it hits 16mpg on the freeway its nothing new.
How bad would you say the freeway mileage drops? With the gearing Im switching to Id probably be cruising at about 2500 rpms. Im hoping to hit about 20ish.
How bad would you say the freeway mileage drops? With the gearing Im switching to Id probably be cruising at about 2500 rpms. Im hoping to hit about 20ish.