Some of the older boards had issues with the large connector pins getting loose. My 70 Duster had that issue so I had to replace the board. Yes, I could have resoldered the loose pins but for me buying a new board was better because it nearly guaranteed things would work. Too much work to find out my soldering job did not get the job done. Also, having the right soldering iron is key for fixing those traces. All I had was a soldering gun and it got too hot (I've seen guys wrap a larger piece of copper wire to the end of the gun to alleviate that). Back in the 70's I tried repairing a bad PCB trace with my soldering gun and the heat made the trace curl up off of the board. Ugh.
