Wow, so much great customizations in this topic !
I really like my RSR a lot, however there was a juggernaut bad point that pissed me off all the time: the rear wheels keep rubbing against the chassis. Then I saw Steinbeisserheld's mod and I wanted to do the same, and using the set's own pieces. It was not rally easy, but I am satisfied with my solution.
Here can see the transition (in red the classical setup, and in green the new one) :
Below is the final setup → Notice the blac 1x5 has been replaced by the 1x7 that was just beside the suspensions and the gray 1x11 was moved ahead to keep on maintaining the structure :
One problem induced with my change is that the bodywork was not well attached to the chassis around the rear wheels (in red), so I used the black 1x5 to fix that (in green) :
In the end, I am pretty happy : no more friction of the wheels on the chassis – and without getting any new piece !