So I bought some Bilsteins from Iron Rock Offroad and they gave me a bunch of hardware of which included these... Can you tell me what they are for?

They're the bar pins for the rear-upper and front-lower shock mounts. The open forked ones are for the rear and the closed ones are for the front. You'll slide those inside of the bushing that goes inside the shock eye.

Sweet deal, thanks man. As you can tell I have never changed the shocks on my jeep.

No worries, glad to help. Had I not done my lift recently I'd have been no help to you. Lol. We all learn as we go.

or you could get bar pin eliminators and throw those away. Maybe try to hit a squirrel with them or something...

That's what I keep reading... Why does everybody hate bar pins so bad?

I put the bar pin eliminators in the rear cause I broke all the bolts and it was just easier for me to weld them in

They tend to make a popping noise with aftermarket shocks. I put bar pin eliminators on mine in the rear.

in the rear i took the rear sway bar mounts that mount the the ubolt plate and used those for bar pin eliminators

You know that loud rattling sound from the back of the jeep when driving over washboards? yeah thats bar pins.

I used the sway bar brackets as well I only had to buy some bolts and nuts

I have had them bend/brake before too.

can someone put up a picture of how you are using the sway bar brackets in place of the bar pins? I am interested in how this is done. I am at that point of my install and am curious.