Hi Russ, y'know I thought of that but they appeared to sell them as pairs. Actually that was one thing I was looking to confirm when I found they were gone.
Especially since they looked like they'd be heavier than the stockers.
I was a little concerned that if I found I wanted to try and add preload I could wind up overloading the stock link - it doesn't look overly strong, a sign of good engineering I think

.
That's a good question to ask the guys that have them - were they installed as a pair or only one per end?
Cheers,
- Jeff