Ahh the dreaded side dump hole. If you are going to use galvanised, clean it before you get it welded. The easiest way is to brush the edges with muriatic acid (don't inhale the fumes, in fact wear a mask), then immerse it in a water bath and then dry it. Before you hack out the floor, take a set square and mark the floor with lines running along the rail length (use the inside line) on to the good metal, then mark the front and rear edges on the good metal for easier alignment. I like cereal box cardboard for templates, and you can use an exacto knife for the fine shaping. After you have welded your part in, hit the welds with a wire wheel or brush to get rid of the scale, and hit it with self etching primer, to help prevent rust (do both sides). You'll have to align your rail and tack it, then check for fit and movement of the seat. A little trick we do is get the lower seat half from a donor car, put the loose bracket on it, then tack it in place. The we chack with the real seat, and do a finishing pass. Then we wire wheel the weld, cover the top and sides of the rail with tape, then prime and paint it. It takes about 4 hours to do properly, not including the paint.
Topic: Floor rust (Read 3064 times)
