aluminum end-cap molding is approx. 1+" wide.  rubber molding inside width is 5/8" + 1/8" on each side where the rubber molding inserts into alum. end-cap molding.  (7/8" total width) This is as close to dimensions as I can get.

 

Drawer metal rail (22 1/2" long x 1 1/2" wide) and plastic end-connector  Need 2 rail for sure, and 2 plastic ends if possible.