Take the step to a 52, 96 year or newer, Cummins motor, larger shaft sizes, longer shoe, larger final drives, many issues were addressed in the 96 model. Easy to set compared to our M2 and spins circles around it. RWA recommended if you had ever wished your F2's had it, 52's weigh around 20,000 with a header on. Your next problem will be needing bigger trucks.... Good luck