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Old 06-15-2011, 09:44 PM   #1
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Question re: P rated tires vs. LT tires

Just wondering how many people have light truck tires on their tow vehicles vs. P rates tires? The reason I ask is because my 2007 Chevy Avalanche has P rated tires...P275/55R20'x to be exact but I would like to look at replacing them with LT tires and think it would be a good investment. I don't understand why any manufacturer would install the tires I have versus light truck tires...hello...it's a truck and should therefore have LT tires. Anyway, from what I've read there is a noticeable difference in the tire characteristics when towing.

Could anyone comment with what they know?
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Old 06-15-2011, 09:53 PM   #2
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Yes, there is a noticeable difference in handling while towing, and the longer the TT, the bigger the difference. Many "P" rated tires aren't very generous on sidewall ply and this will give one a feeling of side-to-side movement while towing. When you get into an "LT" tire with 8 -10 ply sidewalls there is less give.

"P" rated tires are designed for a softer ride, not really for heavy towing.

Bob
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Old 06-15-2011, 09:59 PM   #3
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Agree with Rustic.

P = "passenger" tires. AKA: Ballon tires. LT = Towing tires. Aka: Solid tires.

If you find 'P' tires are too soft for your liking (especially while towing), do upgrade to higher quality LT tires. Do keep in mind the LT tires are "too firm" for some folks. Especially if they rarely tow... Would be cool to have another set of rims with different rubber on each. If one does daily commute, install P tires. If one tows, then install the LT tires. But... That's too costly for many....

Good luck.
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Old 06-20-2011, 04:10 PM   #4
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I have P rated tires on my TV and I have had a squishy side to side feeling ever since I started towing my 26BH. It's really bed in the wind in the wind. Would going to a LT rated tire help with that ?
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Old 06-20-2011, 05:34 PM   #5
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Quote:
Originally Posted by eredinger View Post
Isnip.......Would going to a LT rated tire help with that ?
IMO yes. This subject was touched on in your earlier thread; https://www.jaycoowners.com/showthread.php?t=3100&page=4 and also here https://www.jaycoowners.com/showthread.php?t=2804

Bob
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Old 06-20-2011, 07:03 PM   #6
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Ohhhhhhhhhh No NO No Nooooo! Lose the P rated tires! It's been two years since I did the research on this, but our Platinum came stock with P rated 20". I'm so glad that we found tire/rv forums that educated us on tires. We read of horror stories with uninformed tv owners that had catostrophic results. We made the dealer install 18" LT tires instead. GET THE LT tires/wheels if you are towing with a truck! (ummmm JMHO)
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Old 06-20-2011, 10:11 PM   #7
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We went from P rated tires 235/75-r17 to D rated (8ply) Lt285/70-r17. I run 45 lbs of air in them to keep the nice ride of a half ton.
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Old 06-21-2011, 08:05 AM   #8
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While we are talking about tires ... if your vehicle tires require more than 50 psi of pressure make sure they have STEEL valve stems.. not the rubber ones on cars..
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Old 04-07-2012, 11:44 AM   #9
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Finally made the change...

...well after starting this thread several months ago, about switching from my truck's factory P275/55/20's to a more HD tire, I finally made the switch two days ago. I thought seriously about going to LT tires but made a good compromise...IMO anyway. I had visions of my Avalanche riding like a lumber wagon with 10-ply LT tires on it but I definitely wanted a more rugged tire than the P-rated tires that were on it. So I invested in a set of Cooper AT3 XL tires. Really liked the design of them and because they are extra load tires, that they are a far better towing tire. The Coopers got very good reviews when I was conducting research so I went for it. 2833 pound load rating/per tire which is only slightly under the LT rating's on a buddy's truck. Now I'll feel more confident when I'm towing.
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Old 04-07-2012, 12:54 PM   #10
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I would not tow a travel trailer or 5th wheel with P rated tires on the tow vehicle.
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