Slideout issue

[deano]

Just recently my slideout shakes abit to cause trailer to vibrate a little about 3/4's the way out then drops abit then back up before fully open. Closes normal. Track and seals are lubed accordingly. I do have a topper on it. Maybe binding? The slight drop before fully open wouldn't be from that I wouldn't think.All bolts underneath are tight nothing appears to be loose.Hate to have go out while an a trip if I can help it. Any ideas I would appreciate it. Thanks

[deano]

After lubing the slide the vibration is gone. The last foot or so before fully open it bucks up and down a bit. Does not on the way back in. Anyone else had this issue before?

[Grumpy]

The topper can cause some of that since it places more resistance on the top.

[deano]

I've had the topper on since last year and this just started last week we were out. The topper maybe starting to bind maybe. Still fairly new. Maybe someone else has had a similar problem with there's. Thanks for the response