Why not do what the race mower guys do- use the original frame and run tubing inside it for strength? Or is it beyond straightening at this point?
the frame is just sheet metal with gussets, poor design. i have tried strenthening it with no luck.
the more i weld onto it, the crappier it gets.
i think that i could make a bulletproof frame and simply drop the body over it.
BTW the frame is not only the thing getting bent, i had to remove the hood because the weight cracked the front, and the front axle is flexing back and forth on the frame when i go too fast
EDIT: the paint, even though it is not great, is really hiding its age.
here is a picture of after i cleaned it up a little! the frame collapsed in the back and someone welded a ton of bolts in the corner...