Quote:
Originally Posted by JeffnBeth
Thanks for the reply. So O/D (or over drive) is the the same as tow/haul mode? Excuse my ignorance here - but i've never had to really think about these things.
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No, Overdrive is simply a gearing that makes the transmission output shaft turn faster than the engine. i.e., greater than a 1:1 drive ratio. Older vehicles sometimes had a separate "Overdrive" gearbox controlled electrically.
In most modern vehicles the highest gear is normally an overdrive ratio; in a 5 speed that would be 5th gear.
Tow/haul changes the shift points and shift programming; it does not change the gear ratios.