I found my front wheel king pins and bushings are shot on my B7000 , any advice or tips on changing them or any input on part numbers. I have a buddy's operators manual for his B7100 , not the same , my tractor has the same specs as the B5100D for every thing but the trans capacity which is the same as the B7100 and I have Japanese parts manual but find a lot of there numbers don't change up . Any help would be appreciated. Thanks, Craig