I'm rebuilding the regulators in my 71 Challenger. I've purchased replacement sliders for the regulator arms from RT Specialties. Upon grinding out the old riveted studs, I find the hole in the regulator arm is close to 0.200 inch. The stud on the RT Spec replacement part is 0.120 inch in diameter and shorter than the original. This makes it very hard to rivit the replacement sliders onto the arms. Any idea where to get the correct part or how to make this work?

Astrobuf