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Re: Overdrive downshift,, can it be delayed???
My truck has the 3:55 gears and this may be an issue as my tires are about 8-9% taller than stock 32" vs 33.5".
But I run 70 MPH + at just under 2000 RPM add 8-9% to that speed for the tire offset,,,, so I guess I'm running around 80 MPH @ 1900 or so RPM.
I have wondered if these gears are actually hurting my mileage,,, do 3:73's do better on economy????? I know they will require higher RPMs but is that a "sweet spot" for economy????? Am I alredy lugging it???
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99 Superduty F-350 XLT 7.3 Auto, Dually, reg cab, 8' walk in utility bed 290,000 miles
97 crew cab F-350 SRW 4x4, long bed, 255,000+ miles, 3:55 gears, 255-85-16 tires (33 tall x 10 wide), running Rotela synthetic oil, ford filters, 3" DP, Heavy built E4OD with TUGGER, 7.5' Western Pro plow w/wings
06 Jetta TDI DSG
98 VW BEETLE TDI 5 speed
84 F-250 4x4 6.9, C-6 Auto bought new, 7.5' Western Pro plow w/wings **370,000 miles and counting
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