reverse doesn't work in 904

reverse and forward are the shift patterns. forward is PRN321, and reverse pattern is PRN123. manual means that when you come to a stop, shift back to first, and from takeoff you shift to 2nd and then to 3rd. usually manuals have the throttle pressure pegged out to max. if you like the driveability of popping it into drive, and going and letting the trans shift for you, then go with a full auto forward pattern.