Recreating Trophy Truck suspension

[Katsper]

I've been trying the past couple of days to recreate Baja/Trophy Truck suspension. Knowing very little about suspension and the intricacies makes it a bit difficult but I've been getting closer. I don't intend to get it working perfectly but I want to get it as close as possible without using any mods, mainly to see if it's possible. If anyone has any info that could help me out that would be greatly appreciated. The only thing I can really find on the internet is to use higher damping and lower rebound so I've been tweaking those accordingly and everything else pretty much at my own discretion. Something I haven't tested yet is weight variation but I'm not sure adding/removing parts on vehicles adjusts the weight. Will try when I can.

Here's a link http://i.imgur.com/6zDADzs.jpg to what I have so far. It's still pretty damn bouncy going at higher speeds or on larger bumps and there's some jitter to the suspension but anything below 30 MPH over rocks and the various surfaces on the test map seems to work as expected, most bumps absorbed by suspension with very low body movement. Thanks in advance.