Join Date: Aug 2008
Location: Miamisburg, Oh.
I've heard of some people removing the roller by drilling out the rivet. Then cleaning it up and all the old grease in the track, putting in fresh grease and using a simple sheet-metal screw for reattaching the roller.
I thought I also saw that the roller, a hard-nylon/plastic one, was sold at one of the Impala retailers like Lutty's, Harmons, Classic Impala or Year One, maybe Impala Bobs.