Yeah screws in under the springs, here's a vid:
http://www.youtube.com/watch?v=38T_iDHjaAA&feature=player_embedded#at=371he's got loads of great instructional vids on the site, very comprehensive and makes it less daunting for a beginner like me to try. If it goes tits-up I have Manson's down the road who I can give it to and go "Uh, yeah....could you fix this please?" heh. :lol: