86 chevy crew cab 12 valve swap

[84chevyguyid]

So, got a couple questions. First, how do I stuff the big rubber thingie in the small metal hole? Second, is there a way I can check/set the caster on my front axle. I am thinking that if I stack the air bag brackets on top of the u bolts and take it in to get aligned, I might have a pissed off alignment guy. Would like to get it as close as possible while I am putting it together.