I just bought new tires last year and both stems on the drivers side are cracked badly. The front tire was flat and I could have popped the stem off with my thumb. Luckily they are on my F150 that I rarely drive. I was able to pump up the tire and drive it to the tire dealer for replacements but still
Everybody double check those stems. the 2 on the passenger side still looked new but the drivers

Everybody double check those stems. the 2 on the passenger side still looked new but the drivers
