OK, all testing before was done in 4-wheel drive because I leave it there all the time and never thought to take it out. I lifted all wheels off the ground and the rear spin fine by hand, the left foot locker pedal works fine, the front spins freely too but when the 4-wheel drive system is engaged I could hear a small clunk while spinning by hand, and with the tractor still lifted and engine running I don't hear much noise in 2 or 4-wheel drive, so I lowered it back down and in low gear and 2 wheel drive it rolls a little and started pushing both front wheels then reverse a little and it would drag the front wheels, if I engage 4-wheel drive it rolls the front wheels but clunks/grinds every few feet?????