How do I fix this...

Is that your leaf pack
?

 

If it is maybe put it in a clamp or vise? i dunno, thats what i would "try"

 

Vice grips or clamps to hold the leafs together while you tighten down the centering pin. What happened to make it that way, did you loosen the centering pin and u-bolts or did the centering pin and ubolts snap (I'm hoping you just undid everything)? Also, clean out between the leafs and lubricate, all that grit and crap can make for a squeeky leaf pack. Don't use grease for lube, I think teflon spray lube works well, grease will just attract dirt and grime.

 

That top one looks like it's going to be rebellious.

 

some rebar to match the holes up or screw driver then clamp down until all the leafs are lined up again re insert bolt. Yes its that easy.

 

Tap on the spring ends while using a "bull prick"(pointy pry bar), or other pin to coax them back into alignment. You may want to clean and lube them prior to assembly.