Hurst pit pack doesn't fit hurst shifter!?

Hey guys, I'm having a weird issue I need help with.

I have a hurst compeititon plus shifter that I bought a Hurst pit pack for because it needed bushings and clips....I got the pit pack and go to install it only to find out the bushings don't fit the shifter arms! The shifter arm diameter is too small to take the steel bushing from the pit pack.

The only option I can think of is to drill the arms, does anybody have any better ideas or is there something else? I know I'm trying to install them right, it's pretty simple and I've watched Hurst's video on it to check.

Thanks,
Karl G