There are the two piece design ones (later improved design) and the one piece design ones. I just went through this myself on my 1969 'Cuda. I ordered the PST kit as well. I didn't use the one piece ones they give you in the kit, I bought the Moog K7040 kit. A little more expensive but worth it I believe. As for the one piece ones they will compress when tighted as stated before to the size of the washers and then you can fit your roll pin in on the end of the strut rod. I don't see why they won't work good, but I just liked the design of the Moog ones.
