Quote: im 6' tall i need to stretch it out if i get a savage, and i already plan on drag bars but i need somthing to get my butt back farther, i dont think i can do it more then a inch or two with just the seat
If you want to move your seat position back why not cut the frame pieces down to just behind the top of the shock mounts. The weld on a little bit of support for the old style seats that were just straight and flat.
This is a Corbin seat I got on ebay for $25 + shp, which was made for a 70-80 model Honda 500 of some sort.
I took it apart and reshaped the metal to fit the Savage. The foam & gel I have for it will move the seating position slightly rearward but I am only 5'7", so it is not a crucial for me.
The point is that there are some really good seats available for very cheap prices. It would be much easier to mod the top rear of the frame to mount a seat like this than to build a new swing arm. Much cheaper to do as well.