minnow wrote:
So the spacer fills in the gap between the underside of the kingpin and the top of the aluminum adapter ? The set screws would then press against the spacer instead of the underside of the kingpin ? Do I have that right ?
The shim they sent me is a 2 inch by 4 inch quarter inch thick piece of aluminum stock with a piece of double backed sticky tape on it to hold it to the base of the pin box adapter. The only instruction are the e-mail I cut and pasted at the start of this post. The guidance is to not place it under the set screws. I think it would have worked had it been part of the original design and installed prior to the damage. The shim is just the right thickness to fill the gap between the adapter and the base plate of the pin box. Had something like this been installed under the adapter directly above the ball socket It would have ended up taking the bulk of the load and spreading it over a 2X4 square inch of the base plate rather than the ends of the two taper ended set screws.
I tried to look at the inside of the pin box with an inspection camera going through the hole for the pin box cover fwd mount screws but couldn't tell for sure how the cross brace for the pin is installed. I could only see a small part of it at a time, but all the welds looked pretty good. The back of the pin isn't a rounded base plate like the photo posted by WTP-GC, but appeared more like a long v, or rounded type brace. I'd need to cut the box open to tell for sure, which I may do some day just out of curiosity. From what I could see the baseplate isn't braced at all for a load the way I ended up applying it with the Andersen Adapter.
