[jimcol]

Can you determine what is squeaking? Is it the mechanical mechanism or the wiper seals? May need to lay under the slide as someone else moves it in and out to determine the source. If it is the wiper seals some have fixed it by treating the wipers with 303 or talc powder placed in a sock and dabbed on the seals. If it is the mechanism I have applied dry lube to the bushings on the cogs that the rails ride in and out on. Good luck, Jim