Amp gauge shunt

Redfish, the link below is what I read about re-soldering a mopar amp guage.

Bullet-Proof Your Ammeter (A 'How To') - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums

I have not had the opportunity to look at a spare ralley guage I have to see if that repair is feasible. Trying to use the amp guage has its risks versus a volt guage. I looks that no matter what I will be dissecting more than one guage, nothing is easy. The volt guage looks like a much simpler and safer way to go.