I bought the spot welder from www.usaweld.com. It's a nice unit, and adjustable to the steel thickness and heat level. I also bought some of the additional weld arms that they carry. for the Tail panel pinch weld area I have the outer pinch arms. For the wheel well I used an inner pinch arm set which is opposite of the outers of course. The 20" arms were great to reach around the tail panel so that I could spot weld the trunk and tail panel. They were all additional to the standard arm that comes with it.
