devb22
+1y
Here you go:
First find your measurements, and clamp the sides onto the frame! Get a nice tack on both the outside and inside of the sides to hold them in place!
Second make sure the top piece will slide into place. I put some gussets on the inside before welding the top piece in to make sure the sides did not warp during the finish welding of the sides!
Put the top piece in and again get a nice tack all around. Use a rubber hammer to get all the lines to come together! And then finish weld the top piece to the side and where it meets the frame!
Third take your trusty sawzall and cut out the section of frame inside the notch! And then install the bottom piece to the notch making sure you leave the edge of the bottom plate on each side to weld on! They make it that way for the welding purposes!
Then weld her all up, grind the welds, flap the welds, and your done!
Here is a pic of a finished notch all flapped down. Sorry about the quality!
Dev