Crack surrounding door striker

Beware when doing welding on the body. Way back around 76-78 when I was driving my 68 GTS, the striker cracked around the edge. My brother worked at an International dealer-and they had a stick welder, that was long before everybody had MIG welders. Anyhow he welded it with a small rod turned down. It looked pretty decent. I backed my car out of the shop and took off down the street. My 4 speed was making a hell of a noise, turned out I ruined both of the main shaft bearings in the trans. After we cleaned the old bearings up-you could see a little burn spot where every ball was sitting. Make sure you ground it good!
I was worried about that. Before welding I used an ohmmeter to check the ground connection. The seat bolt was my first idea but it showed no continuity to the sheet metal. The spring hanger bolt was much better at .3 ohms.