I forgot about my magically disappearing front lower bump stops.
I guess the rubber parts were just glued in. Check to see if yours are still there. If ya wanna keep 'em there, remove 'em and drill a hole thru each side of the metal and a small pilot hole in the rubber. Then use two sheet metal screws to keep the rubber from falling out. If ya need new bolts, M10 x 1.25 x 25 or 20.
Mark
I remember when I found mine like that - Trooper ones fit as replacements.