How do you know what seams to seal? I was looking up under the 73 at all the fresh seams (from recent sheet metal replacement) and plan on sealing those-but I noticed factory seams with no seam seal. Made me wonder why...and since we had a whole quarter, including the wheel housings, replaced, it made me wonder which seams I should seal on that-it appears that some I was going to seal were never sealed from the factory (I looked at the other side)...I'm not worried about concours correctness here, but I would like to keep form doing all this again if possible!!