Studs showed up so I got them installed. Here’s what I did:
1. Cut stud as close to the body as I comfortably could. I then used a 3” flap disc on a die grinder to take it the rest of the way and also straighten out the cut.
2. Center punch and drill out the stud. Started with a pilot hole and worked my way up to 5mm.
3. My holes were slightly off-center so I took a carbide bit in the dremel and removed the rest of the remaining stud.
4. Tap the hole to M6x1.0
5. Install the studs. I used blue loctite on the threads to help seal the threads and keep them tight. If something rattles loose then I’ll use red loctite next time.
The holes I drilled weren’t perfectly straight
but I think it’ll workout alright. I test fit the new heater boxes and gaskets and they fit fine. Next steps with this part of the project is to touch up the paint where I accidentally touched the flap disc to the body, and also touch up where the paint was removed underneath the sound pad.