I bought one of those 1:18 scale rock crawlers. I can't afford the biggrt one so this well have to do. I've had it for 1 day. I have already added 1/2in to the wheel base, by moving the rear axle back. This aloud the axle to clear all the arms for better flex. I also added a 1/2 body lift. to help clear the rear tires. I removed the springs from the front shocks and removed the shocks in the rear. All this in the first 3 hrs of playing with it. Heres some pics. Just click on my picture page at the bottom of this post. Man this thing can flex. Next it's the paint and wheels.