Last night I discovered that my very half assed short term(4 years now) repair on the rear air suspension of the truck failed. That definitely explained why the truck was pulling harder to the left for the last few miles. Today, I fixed it better.
Here's what it used to look like, this is actually the driver's side.
The next pic is what it looks like now after I fixed it...
5/16" bolt with a nice shoulder, a few washers, and a lock nut.
I'm looking at making a better piece for this. I kinda like the idea of using the ball joints to keep things spaced properly and replaceable.
I'm not sure if it was the spring that failed, or if it was the ball itself that started failing. The ball feels like it has more than a few flat spots on it.