While you're at it-play around with some tail light protection if you don't think it's too late, I'll post a pic of mine if you want to get some ideas...I might also say that after you grind out those welds, you might consider doing another bead over the top-i'm no welding expert, but grinding a weld can put extra, unneeded heat into the material and weaken it. Actually--now's a good time for somebody to explain that, I've heard it, but I don't necessarily understand it. I also just take people's word for it and get a good penetrating bead and leave it...anyone?