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Old 12-04-2015, 01:03 PM   #11
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2013 Ford XTR with Firestone rite ride air bags added. still found hauling our tag along trailer we were getting wind suck like Joey Logano being passed by Matt Kenseth doing 186 mph.

then we went to the tire shop and the guy pointed out we would always have an issue as long as we ran P rated tires. he pushed on the box side and you could see the tire sidewalls torquing / flexing.

changed them that day to Michelin 10 ply LT truck tires and leave them at 55 lbs normal running pressure. up them to 70 when hauling the 5th wheel bunk house we now have.

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Old 12-04-2015, 02:18 PM   #12
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Had a 2011 F150 XLT with the P rated tires and always had a squirm while towing the trailer or had a heavy load. Now have a 2012 XLT with LT tires and it is a day/night difference. Rides some what harder and fuel mileage seemed to drop a little bit. But the squirm is gone and handling is much better. Both trucks had the 7,350 rating.

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Old 12-04-2015, 02:40 PM   #13
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Pulling my 5th wheel, I've not noticed the issues mentioned but in the past, pulling a travel trailer, I can identify. One thing I learned from weighing each axle was that adding 1800 pounds of pin weight, only added 60 pounds to the front axle. It would be interesting to know how much weight shift a travel trailer, equalizing hitch would shift.
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Old 12-04-2015, 02:41 PM   #14
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Stay with LT tires. Run at max pressure shown on sidewall. Good Sway control a must. When you see a big rig coming move a little to right. It helps. Fast buses are the worst.
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Old 12-04-2015, 02:59 PM   #15
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The two most obvious advantages of LT tires over P tires on a your 150 truck is lots of extra load capacity and much stiffer sidewalls. This is not a recommendation, just an example.

The Firestone Transforce HT, LT275/65R18E @ about $194 provides 3415# of load capacity @ 80 psi.

The Goodyear Fortitude HT, P275/65R18SL @ about $174 Provides 2514# of load capacity @ 51 psi after being derated about 10% for use on the P/U truck.
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Old 12-04-2015, 03:27 PM   #16
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Just got Michelin Load Range E tires and it makes a big difference in towing but at the expense of ride quality and comfort when unloaded. With that said, its a trade off I'm happy with.
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Old 12-04-2015, 04:02 PM   #17
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Last vs P tires

My F150 P 275/60-20 Perelli Scorpions and I was really concerned. I agree...max pressure all the time towing . Did a 16000 KM trip this summer in all kinds if terrain ( including 1700KM of gravel ) and I have to say my fears were unfounded. ..... No flats. In terms of handling, put a anti sway bar on your unit and the problem goes AWAY. No effect by wind, passing trucks etc. Spend $50, and the 1/2 hour it takes to install it and you will be amazed. I opted for the HD version because our TT weighs 8000 lb dry and is very high profile. I've akways been a Goodyear fan and have Goodyear Marathons on the TT, so I suspect I'll replace the OE tires with Goodyear.
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Old 12-04-2015, 04:08 PM   #18
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P is for passenger. Nice ride for Tahoe/Suburban

LT is for light truck. More heavy duty for hauling/towing

See ratings above
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Old 12-04-2015, 04:47 PM   #19
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Getting pushed around

I have the same issue in my F-150. I upgraded to the LT's with air bags and h/d shocks but still get thrown around. I think the issue is the 1/2 ton pickup is just not enough. I don't think you would get that with a 3/4 ton truck and if you did it would certainly not be as bad as the 1/2 ton.
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Old 12-04-2015, 05:22 PM   #20
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LT tires will help reduce the push from passing trucks and buses. I have noticed a difference since I put Michelin LTs on my F-150. Remember that the LT tires DO NOT increase your TV's GVWR but it will feel more solid. If you don't pump them up much more than the psi on your door sticker when unloaded they won't be too stiff. I run mine at about 45 psi but may try 40 psi for the winter. I pump them up to 60 psi when towing.

A perfect setup on your WDH is a must and suspension improvements (I added an extra set of leaf springs) will reduce the bounce in the back end.

I bought Michelin LTX M/S2 tires. They are a good tire but I'll probably go with Bridgestone Dueler AT Revo 2 next time because the tread on the Revo 2 P-rated tires I replaced was better in snow.

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