So 042-50f is rubber and 042-57 is a metal bushing? Ace Hdw and Napa have several sizes of rubber grommets. Maybe one will be right. I have also bought metal and nylon bushings at Ace. The Ace around here,Iliff and Chambers, is well stocked. The one at 6th and Peoria is very good and been around a long time, lot's of OLD hard to find stuff. Good luck!!!
L43dean-1968 Fj40 LandCruiser,1980 Rn47 Hi-lux Pickup 4WD and 1985 Rn65 ExtraCab Truck 4WD. YEP!