Try a set up from link below, the 2nd one is the same as i use except for tires. Give it a try see how you get on.

http://www.uk-microrc.co.uk/forum/in...howtopic=14165

Thanks for the tip. I'll wait a little though... I've reassembled the shaft but I want to finish the assembly of the car before running it again. I should get the new parts soon though (dampers and others)

Julien