Inside slide rollers
On my 2003 35 PKO the two big slides move very slow so I replaced the outside outer and middle bearings. And the rollers inside didn't seem to be working properly . So I removed them and found that most of the bearings inside the pipe or roller had moved inward leaving the pipe unable to make good contact with the slide. I bought new bearings, made new mounting brackets and cut some 1/2" OD pipe to go over the bolts and fit against the bearings to keep them in their place and mounted them back into place. I closed the slides in for the winter and installed the new cover for the winter , so next spring I will find out just how well they work.