I'm trying to identify what modifications were done to my pickup (86, 4x4, IFS). I don't know what the stock parts look like (first pickup, purchased as it currently stands) so I'm hoping for assistance. I have what appears to be 4" blocks on the rear leafs, 4" brackets on the front sway bar, so I'm assuming 4" lift. No ball joint spacer. To me, it looks like an aftermarket steering knuckle, but again, I don't know what stock looks like. Also, how can one tell if the torsion bar is adjusted? Any other parts to look for? Basically I think this suspension sucks. So first order of business is identifying what the current situation is. Then look for improvements.

 

More pictures would help. Like one of the front drop bracket (front and back). Also remove the tire and take a better (clearer) picture of the spindle. Just from the picture you posted I'd say 4" trailmaster, but the picture is poor.... Get some better ones....

 

That is a spindle spacer for the common 4" lift. To decided whether it's a Procomp or Trailmaster you'll have to provide pics of the drop bracket.........