there are plenty of options for this most are Tamiya trucks

1. Clod Buster
The stock truck is fun but not very worthy so most people mod the heck out of them and the only stock part is the axles with a 4 link set up.

2. TXT-1/Juggernaut
More capable but again most people mod them and only use the tranny(Sometimes swapped out for something more durable) and the axles.

3. High lift/Bruiser/Hilux
These are more for realism but are also capable of all kinds of mods and what not to make them work really well for mudding and crawling.

4. HPI wheely kind

And many others

For a whole lot more info with pictures and videos check out this site
www.rccrawler.com