Brake Pushrod for 70 Duster disk conversion
put the rod in a vise and give the master a hit with a lead or leather hammer. Or you could heat the insd of the hole for the rod up a very little to soften the rubber ring that holds it in. This is the piece that holds it in . all the rods are the same for 67-76
Buy the rod fastener here
Mopar Manual Brake Push-Rod Retainer, Bushing, Clip, Rubber Grommet | eBay