My plus four swinger ain't here yet but had time to pull out the stock shock and install the 400ex shock I drilled out the bottom mount for the pin I thought about getting those Ken oconnor bushings but being cheap I'm gonna drill a 10mm hole through the stock upper bolt then cut 2 pieces out of it to use as bushings then I will use a 10mm bolt to tie it all together plus I'll use a couple washers to limit the side to side play I'll toss up some pics in a bit I'm on my phone and I have no idea how to load pics from it .