Question about AllPro UCAs

This is probably a stupid question, but do AllPro UCAs need to be on a certain side when you install them?(A specific driver side one, or a specific passenger side one) I installed mine a while back, and have been noticing a popping noise while driving. I went under my truck today to look at what was going on, and noticed that the UCA on the drivers side is hitting the coil bucket and has chipped away alot of the paint on the UCA. Just wondering if maybe they are on the wrong sides. If not that, any suggestions on anything else to try?

 

pictures always help

 

Sorry about that, edited OP to include pictures!

 

any control arm is specific to driver or passenger side. could be that your bushings are worn causing the crush sleeve to hang lower?

 

Update: I talked to Allpro, apparently there was a quality control issue on the UCAs for a batch or so. Mine happened to be one. They are sending me a new one that shouldn't have any issues, so once I get that installed we'll see if there are still issues! I do have a clunking/popping in the front end, but am waiting to swap the uca before I start getting too far into that.