Question: Ont hte Push Button Allisons.
From N the back arrow is Reverse.
What is the forward arrow sequence of shifts.....I don't recall and am looking at a bus that the display is inop
Typical is R-N-D-3-2-1 for an Allison HT740 4 speed. The shift is 1st converter, 2nd converter, 2nd lockup, 3rd lockup, 4th lockup. All start in 1st and whatever gear you select will be the ultimate top gear. WARNING-if you overspeed in say 2nd gear, it will upshift to 3rd, even 4th to save the engine. Good Luck, TomC
If you have a pushbutton allison you have R & D and arrows and N.