I'm trying to make a pivot rod for an underfloor brake system to move the MC & booster further outboard to make room for the exhaust. I need the pivot to look like a scaled down clutch z-bar. I have some materials in mind but I think I'm building it too big (3/4" Borgeson splined steering rod, UHMW plastic liner & 1-1/2" outer pipe, etc). One arm will be 2-1/2" long and welded to the pivot & one will be about 2-3/4" long and welded to a splined collar. I don't really think there will be tons of torque applied to the rod (normal braking & emergency braking). Can I get away with building this thing out of say a hardened hitch pin or a grade 8 bolt? Will the cutting & welding weaken these? Anybody have any material suggestions?