Yo I'm restoring a Renault 4 I've started with the ball joints since they were all ruined and I've got the drivers side sorted but while working on the off side I managed to brake the long fixed thread that comes off the lower suspension arm which with 2 nuts and bolts connects the lower ball joint. since this thread is built into the arm I'm not sure how to replace it other then drilling through the arm its self and droping a bolt through. any sugestion?