There is play in the steering of my 1988 Chev Suburban V-10. My wife drives it, usually, and complains about it. I didn't know what the cause could be. I notice in the LMC Truck catalog that they offer a steering shaft assembly that can correct this problem. However, they also sell reman steering gears. Their catalog says that the OEM shaft can't take much abuse. Is the shaft likely the problem, or something else? How can I tell if it's the shaft or the gear? Thanks, much appreciated.