Attention: TDR Forum Junkies 
There are low and high pressure rubber valve stems.
When on my last long trip to the Yukon I blew out a complete RF valve stem. I had been running all day in 90' heat and just pulled into a camp ground and site and shut the truck down.
About 10 min later rum and coke in hand the valve stem just blew out of the rim like a bullet.
Next day I got it replaced at a tire center and carried on my merry way thinking it was a freak occurance.
When in Whitehorse I had a flat and was in Yukon Tire getting it fixed when the fella pointed out to me I was running low pressure valves in my tires. I replied I didn't know there was a difference and and these were factory tires the way they came from DC.
He said the "E" class tire should be equiped with a high pressure valves as it can be inflated to 80psi. Low pressure valves are only good to 55psi and that Iam lucky one never blew out on me causing an accident. I told him my just prior experience and instructed them to put high pressure vavles in all 5 tires.
A week later I was in Dawson camped beside a fellow Dodge cummins owner. He told me a story about on his way up there a strange thing happen he blew a valve stem right out of one tire. He and I had the same DC equiped tires, BF Goodrich Rugged trails.
So live and learn. My prevoious Dodge had "E" class tires and I ran all over north america with the camper with no tire valve issues. Maybe they I had high pressure valves already, I don't know.
Anyways this is my experience and how I learned there even was a difference.
When on my last long trip to the Yukon I blew out a complete RF valve stem. I had been running all day in 90' heat and just pulled into a camp ground and site and shut the truck down.
About 10 min later rum and coke in hand the valve stem just blew out of the rim like a bullet.
Next day I got it replaced at a tire center and carried on my merry way thinking it was a freak occurance.
When in Whitehorse I had a flat and was in Yukon Tire getting it fixed when the fella pointed out to me I was running low pressure valves in my tires. I replied I didn't know there was a difference and and these were factory tires the way they came from DC.
He said the "E" class tire should be equiped with a high pressure valves as it can be inflated to 80psi. Low pressure valves are only good to 55psi and that Iam lucky one never blew out on me causing an accident. I told him my just prior experience and instructed them to put high pressure vavles in all 5 tires.
A week later I was in Dawson camped beside a fellow Dodge cummins owner. He told me a story about on his way up there a strange thing happen he blew a valve stem right out of one tire. He and I had the same DC equiped tires, BF Goodrich Rugged trails.
So live and learn. My prevoious Dodge had "E" class tires and I ran all over north america with the camper with no tire valve issues. Maybe they I had high pressure valves already, I don't know.
Anyways this is my experience and how I learned there even was a difference.
