hdfx81 Posted October 21, 2016 Share Posted October 21, 2016 One of the top kingpin caps was missing on my 87 superliner went to mack and was told mack changed the style of the caps, the one they gave me looks like a freeze plug(just a disk with a slight curve). I put in on and when I grease the kingpin the it pushes out the cap. I found the original type and was wondering if there is a certin way to install it. I will take some pics later and post them. Quote Link to comment Share on other sites More sharing options...
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