The vise was used in making them...
Now for the top of the seat frame... We started with some 3/8-16 standoffs that are 5/8 diameter, and turn them to 1/2 diameter to fit inside the seat frame tube...
http://i5.photobucket.com/albums/y16...5/IMG_2826.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2827.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2828.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2830.jpg
Then holes are drilled in some 1.25 square tubing...
http://i5.photobucket.com/albums/y16...5/IMG_2832.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2833.jpg
Tacked in place and a nut used for added insurance...
http://i5.photobucket.com/albums/y16...5/IMG_2837.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2836.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2839.jpg
Seat latches plug welded in place...
http://i5.photobucket.com/albums/y16...5/IMG_2844.jpg
Side pieces formed....
http://i5.photobucket.com/albums/y16...5/IMG_2842.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2856.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2847.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2848.jpg
http://i5.photobucket.com/albums/y16...5/IMG_2849.jpg
The side pieces will be trimmed, fitted, and welded to the wheel well...
http://i5.photobucket.com/albums/y16...5/IMG_2855.jpg