any suggestions-it seems to me that the allison and duramax have a lot of power[well du]--
most of my time is spent unloaded, around town-
the trans seems to shift down when it doesn't have to-also when using cruise control it downshifts on slight grades-again when it still has power.--can't we find a way to adjust the shift points--seems to me it will save trans wear and produce fewer rpm's and maybe some mileage gains?--