This is how I did a DIY repair on the rusted out rear trailing arm mount on my 2004 Honda Element. Most people claim this is a death knell and that the vehicle is junk when these mounts rust out, I am unwilling to accept that so I fixed it myself. This is the first time I've attempted such a repair or really any kind of fabrication project. My only previous welding experience has been on exhaust systems (and I've only done that twice).