Well the interweb is incorrect. A m416 tub will not fit on the bantam TC3 frame. The tub is 2 inches wider than the TC3. So i had to take my $50 m416 tub and do a little plastic surgery. Cut right down the middle and then i will mark my next cuts to allow me to have a piece of one half go under the other and be a flange for me to weld to. the floor is rusted pretty good so i would have a hard time trying to butt weld it. This should be a quick little side project so i can get back to the flatfender. I just wanted to get it together so i can move it around easy, the tub sides rubbed on the tires and the thing would not roll around with ease.