[BrianG]

I used some of those shock covers on my Nitro Revo and noticed that they wear out underneath on the rear. There is not much clearance between the spring and the chassis there. They do keep a lot of dirt out though. I also filled in all of the little holes on the spring retainer with hotglue to keep even more dirt out. So, the only place for dirt to enter was the removal slot and I kept that facing down.