yeah dude, find out what exactly it is that you need, lol. There was something called a keystone clamp(??):
but i think its only on the passengers side.Is that where you need it??
Also, working on normal control arms spindle, there is a square hole that looks like a key goes into it (keyway i guess it'd be called), but you don't put a key in there, the washer has a little nipple thing that sticks into the keyway to lock the spindle nut on so it doesn't back out. But i've never worked on a TTB suspension so you might not have one.