--- Post updated --- How did you get all the T85 wheels to work? It doesn't spawn with the rear steering or very back wheels and when I try putting the wheels back on, the back wheel can only be the mud bogger tires.
You need the GTG commons mod and the D-Troxx colorable truck rims mod, both linked in the description of the T-series expansion. Also make sure to clear your cache if parts aren't showing up. OT: