Well I found another case like mine on the tundra forum. Same exact failure.
Bilstein 6112 Failure! | Toyota Tundra Forum
I guess I'll call Toytec when they open tomorrow and hope they will send a replacement without me sending in the busted shock first.
Kind of lame that highway driving will cause these to fail. I haven't been been paying too much attention to the forums for the last few years. Are there any other "set it and forget it" front suspension options that provide increased handling (top priority), low lift, and are sold as a complete set? I ditched my OEM assemblies when I got the 6112s, which makes the 5100s an expensive downgrade at this point.