Whilst rejuvenating my rear suspension, I noticed that the trailing arm box section of the frame had some "surface" rust (I also noticed what looks like signs of previous welding repairs). With my paint scraper I was able to locate a pin size hole...which on further evaluation seems to be able to accomodate a 2 inch diameter pin! So it looks like I need to have that section repaired or replaced. The car is currently in a car port with no right rear suspension. Should I go ahead and proceed with my suspension repairs, then reassemble and drive carefully to a frame repair shop? Or do I need to rethink this entirely? (I'm afraid to think what lurks elsewhere). Is this a doable repair? What should I expect this to set me back (I figure I'll have it done to both sides since the left side looks worse, though it does have a repair done to it)?