Lower ball joints
I don't have a aftermarket K-member but I replace my lower joints with no problems. Rented a tool to take joints out. Took more time to drive and rent the tool than taking them out.
BTW, how do you like that Hal K-member? I guess you used your original uppers also? How long did it take to R/R it?
Did you lower your car too? I read and article if you lower your car more than 1.5 you can run into some issues with the lower joints. Steeda or Saleen has a replacement joint for car's lowered more than 1.5" I just thought this was good info.