1971 challenger rear tail panel Barrel Nuts

[Daveh]

Hey Guys,

2 Questions:

1.  Does anyone know what size barrel nuts go in the back of a 1971 challenger rear tail panel?

2.  Has anyone successfully tried tapping the studs? 

[anlauto]

Answers:

1. Zero

2. Yes

[Daveh]

Got them all tapped.  Worked out great.  Thanks