hello did you find someone that can make a custom shaft for the np 205 i am looking for one because i truck pull and i am going to try to run 35 inch tall tires and i don't want to break the shaft because i am not sure if i have enough power to turn them i am running the np435 and the np 205 with 4 10 gears my new motor dyno in at 700hp and 542tq maybe you may have some input on this talk to you later