I've been giving the Yale truck a going over before I take it out to work,it is a Yale GLP040AFUAE078.It seems to be fairly clean and well maintained machine.Everything seems to be pretty tight.The tilt though,seems to have some slop and rocks quite a bit at full mast height when moved back and forth (with no load).What are the likely points of wear? It appears to me that there is some movement in the forward bushing of the tilt cylinder. Are there other parts likely to be worn? Is the rear bushing typically changed at the same time?