crawler parts for Gravil D and bigger tires high rev motor better trannies welded diffs front and back
Not the right place to post this. Crawler/truggy - http://www.beamng.com/threads/adams-parts-thread-truggy-update-now-full-4link.15137/
A monster truck is not a real Four Wheel Drive vehicle. I like the D15 as it already is because it is a sensible Four Wheel Drive pickup truck.