Is this the kit? Damn I wish I had known about this earlier. I might have kept my 333 Hitec servos instead of buying the 8800s.

http://www.horizonhobby.com/Products...rodID=LOSA1540

When you say that your wheels get stuck what does it take to un-stick them. Manual force? This problem is a head scratcher for sure but along with Bentgear's advice for troubleshooting I would take a close look at the carriers and spindles. The turning arm on the spindle may be binding as it wraps around the carrier. Also carefully inspect the steering bulkheads. Let us know what you find.