Zmodeler3 - How do you import wheels/get them to spin?

[poisonwind34]

What I have so far
http://imgur.com/CnCc7ru

The wheel you see was imported from this
https://www.gta5-mods.com/vehicles/dodge-viper-srt-10-cabrio

but it crashes the game.
other weird bugs like this
http://imgur.com/O435pgz

I'm at my limits here with what I can do after 2 days experience in zmod.

[FoxtrotDelta]

@poisonwind34 all about wheel collision and dummy pivot