Can I use them until I need glasses? .....sorry, wrong forum. I guess you guys can consider me your beta test truck. I installed them, and they seem to be performing really well. The middle plug on my drivers side was actually a little loose. It had some blow by on it. Also, there was NO anti-seize on the stockers! Luckily, they all came out o.k. I'll let you guys know how they work.
Winkel


98 T100 SR5 4WD
Rhino Liner
Warn Hubs
Mostly Stock