yeah you can flip it, BUT you must install a flip kit for it to lubricate properly.
the kits i've looked at are around $600.
you could put a stronger axle up front with a passenger's side drop. (that's what i'm doing)
oh and if you get the idea of using a D44 and find the high pinion appealing...
let me save you some trouble. they never made a passenger's side drop for the HP D44.