I'd think regular tools should work.   Usually a selection of 3/8" & 7/16" sockets or deep sockets is the ticket.

carbuff2007 wrote:

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Be careful taking them off, they are old and the pins the nuts tread on will twist of, my advice---mask them

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         Wow  thats a tough call  

        If your spending normal cost for paint 6-7,000.00  

        then masking seems like a cheap way to go, as you can always (always) see where it was masked  

         but you hate to break unobtainable trim  

         good luck

Spray them with a thread penetrant, let them sit for a while, give them another spray, and then turn the nuts off slowly and evenly with a deep socket. Good luck.

poncho62 wrote:

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I would take them off...If they do break off at the pins and you cant find new ones, you can always glue them back on.

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         good idea  too