Humayrayakongkina, I got my PF8 body in, and now I want to mount it. As we talked before, you suggested I go with the Pro-Trac arms to widen the stance and bring the wheels out to the edge of the wheel well. I was looking at your, dreddedend, & diggerpede's posts & discussion on extended length A-Arms. Not withstanding price, although I'm not interested in spending $40/pr for arms, what conclusions have you guys come up with best performance, durability, & fit? Also, exactly what will I have to buy to build the Teckno/XO-1 shafts, and still utilize my XO-1 carriers? You guys have posted so many combinations, I'm SO CONFUSED!!! LOL!! Thanks guys!!