I use the Factory five
http://factoryfive.com Upper/Lower combination (greasable, poly, tubular) and Slot Car Racing
http://www.slotcarracing.com lower control arm brakets to lower the rear control arm for increased anti-squat. No quad shocks, no snubber, no wheel hop. I do use a rear sway bar. No 60' times, but my 3 & 4th gear tire spin went away.