I just bought a Rivet Nut Insertion Tool from HF. I originally bought just the rivet nuts so I can install new (really old) Shell style horns on the firewall, intending to use just a bolt and nut to install the rivet nuts, but discovered the it was not that easy. Seemed I needed more hands than I have, marred the face of the rivet and it didn’t compress evenly, so I decided a new tool was in order. After all, men can’t have too many tools! The reviews on the Doyle HF tool were really good.

I didn’t want to fasten the horns to the firewall using a nut and bolt for two reasons. The first is I would need my wife to help, and she would be too keen on laying under the dashboard. Second, I just installed the firewall pad and cover, so I don’t want to remove it to get access to the nut. I figure I could remove a couple of the firewall clips to gently pull the pad away from the firewall to drill the holes.

I tested it out using one of the supplied 1/4”-20 rivet nuts and it was easy. Now on to install the horns!
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Phil
Moderator, The Engine Shop, Interiors and Project Journals

1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
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