Yah I know what you mean about the bolts. I bought a tiger drive and it was working great except the screws started to loosen. Finally one day I was driving and ran out of gas, when I went to restart I noticed there was one screw left. I had one heck of time tracking down th eright size screw...2.5 mm...no one had it. Finally I had to contact the company and they sent me the screws free. Thanks for all your help, I'll keep you posted on how my truck is doing. Are there any places I can look for upgrades for the truck. The only part site I've been able to find is www.redcatracing.com and they seem a bit expensive??? Anyways, thanks for the help.