V1.1: Fixed Shadow Errors

I've been working on remastering this thing since the first release, and I am very excited to get it to you. I've been redoing it with the new UDIM system, along with adding little details and animations. It's been exciting making these tractors, and I am so thrilled the community will be able to play with more than just a simple conversion.

New Features:
Key start animation
American hitchpin
UDIM
Animated throttle and brake
Chrome stack option
No nub tires
Rescaled to be accurate to real life
and many more things!