LOOSENING REAR DIFF QUESTON. We have 2 guys running the Pro 4 at our club, and both have had continual problems with the rear diff loosening up and needing to be replaced. I ran the Pro 4 when it first came out, and never had any problems with the rear diff. Is there some sort of defective part that needs to be replaced or what?
Has anyone else had problems with the rear diff. These cars were both new, ran for 2 heats, then diff going to crap.
Any info would be greatly appreciated.