I have a piece of junk 5.5 hp mtd knock off (yardman?) with a good engine and trans section. The auger section has bad gears, reallly rusty, etc. Where the two bolt together, the sections are flat. I want to try and add an auger section that is very new, but it has an additional 90 degree lip on each side that is used to hold the two section together. Best to drill the new section or try to weld a piece of angle to the trans side? Or maybe both?