That is one of the minor modifications to the K frame. There is a steel bushing that gets slid in place where the factory bushing was located. From the side of the K frame through a hole it will get drilled and tapped for a set screw. Once the pivot shaft is slid in position the set screw will get tightened down and this will keep the shaft and bushing from spinning. The set screw will be hidden out of sight inside of the K frame. I hope this makes sense. This was my biggest headache while making this work.
The cool thing about these Lower control arms is that they can be installed with the engine and K member in the car. How is that for easy and down the road the car can be converted back to torsion bars with the factory LCA's. I have put quite a bit of thought into this project.
