JB weld is a no, no. It is aluminum. If you have a welder that will weld aluminum and have experience doing it, go for it. I can weld metal but aluminum is a different monster. Mine is cracked in two places, and when I get the shell back on I'm taking it to a welding shop to get them to fix it right. This is my suggestion. And make sure they have experience with aluminum!!!!!!!
May you have at least one sunny day, and a soft chair to sit in..
2008 5.7 L V8 Sequoia
AIR # 31243
WBCCI # 6987
FOUR CORNERS UNIT