New control arms (Savvy versus Metalcloak)

[Irun]

If one insists on doing it the hard way and risking running into a hardened bolt sleeve, the best way to do it is with a 7/16" chucking reamer. I've done several with the same one and it is still sharp. Only a solution, not a recommendation.

I've seen this done on a drill press, but never by hand with a drill.

 

[MichaelGH]

Until you’re drilling the uppers on the axle side… fuck that. I never want to do it again.

That’s a fair assessment. I actually replaced one set of the axle side bushings instead of using the O.E. bushings when I put aftermarket arms on. The other time I had a good set of bolts replated and used the frame side flag nuts…