I got a helicoil kit from napa,came with a tap too , it was like 65$ but the pedal fit extremely tight in the helicoil, plus they dont come in the left hand threads, so you should def try to find one from a bike company.. Other then that its easy just drill ,retap and screw the helicoil in..Then again you might end up spending as much $ on the helicoils, tap ,etc as you would on a replacement arm..