GM 10 BOLT Balljoint Camber Caster Bushing Thread?

[GMAN255]

Hi Guys,

Just starting rebuilding front axle 90' K5. One of the upper ball joint bushing was a pita and I ended up cutting it out. The threads were slightly galled up and I cleaned them up with a dermal tool. Ya, I know not the right tool for the job! (with a steady hand) I'm able to thread in a new insert for the most part...

I'd like to chase this with a tap, are there any repair tools available for this?
I've come empty on the University of google, Part store tools, and Fastenal.

Thanks in advance
Newbie
G

 

[Recon 78]

1 1/8 -12
Same as upper king pin on a 60
You can use a tap to chase but it can be risky(we've all done it) safer way is to find a bolt and grind debris relief slots in it