Yep I had that same problem with my workhorse lift kit from them. The bad thing is they will start bending when you have to keep tightening them and eventually they will round off around the spindle arm and always be loose.
The ST workhorse spindles do have raised arms. I have a pair on my Arctic Cart and they are much safer.
Oh also those tie rod extenders will put stress on the spindles and they will break easily if you hit something. I went through several spindles on my workhorse because of that. One time I was at an off road park and just barely tapped a tree with the side of the front tire and it broke the spindle right at the extender.
