The Troa rear panels are nothing short of a disaster. None of the bends are at right angles, they lack holes for the door cage nuts to be put in (and they lack the cage nuts). The right side was so out of square that I grew very frustrated at one point on why it wouldn`t line up right. I ended up trimming back the panels then creating a frame with angle iron and some scrap I had around the shop then bridging the gap with mig bead. It was not fun and I strongly caution anyone from getting the Troa panel. the panel themselves were not bad where they were stamped, but nothing else was right. I think they should just ship the stamped part if they going to not instal the cage nuts or do a decent job of getting bends to be close to 90.