Damn man that is some fucked up shit.....I really dig it....it confused me at first till I really looked at it....now I understand it....lol
Welcome to the board.....keep up the good work....
Usually im the first to call somone on a poor "idea" but that is very well designed. I like how you used what is usually a 3rd arm to lift the axle and just made it the lowers, i may have to do that one day haha.
Only thing i see that just gets to me (and it may just be me) is the open ends on some of your tubing. If your capable of cutting angles why dont you just enclose all the ends?