You might want to take a closer look... Do you know what the first thing Toyota Employees are taught to do when they are sitting in a room in a meeting discussing a production problem?
The first thing they are supposed to say is "I don't know, let's go see".
In other words the only way to solve the problem is to go to the source of the issue and look. You have missed something the answer lies in wait for you at your Cherokee. Go look!
Mike

 

I went back and looked over everything agian and still found nothing. the spot in the pic is just something stuck to it. I think the only way I'm gonna find anything by looking at it is gonna be by putting another one next to mine and going back and forth to compare the 2.

 

That's an idea.. I'd still bet those coil spring spacers aren't doing you any favors. I'd loose them since you can't see anything from casual observation.
Let us know... When you did take the spring off did you happen to stand it on the floor and see if it looked bent? Why don't you stack the drivers and passenger springs next to each other when you remove the spacers? You could even move the drivers spring to the passenger side and visa versa to see if the problem moves to that side.
Mike

 

yea i will have to do that. i did take the coil out and roll it on the ground and put it up to straight edges and found the coil fine. it's gotta be something with the rear out of whack. someone posted saying i think caster might cause it but idk. I'm going to rip the coils out again if the alignment doesn't fix it.

 

Before you pay to have it aligned I'd take those spacers out... They are known to wear out and cause issues...

 

I had the spacer out it was still solid no cuts or grooves just dirt stains around where the coil was.