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Old 07-16-2016, 07:36 AM   #1
Coachman 312BHDS
 
Join Date: Jul 2016
Location: Southern Missouri - Ozarks
Posts: 225
Tires for a 2014 F150 Lariat 3.5V6 Eco Max Tow

We bought a new 2016 Coachman 312 BHDS Liberty Edition and a 2014 Ford F150 Lariat setup for max tow with the 3.73 rear-end earlier this year. Someone put 7500 miles on the Lariat in 13 months and just had to have a new one. It appears the hitch was never even used.

Anyways, it pulls the trailer loaded really well and we have about 1200 miles towing with much of it even in the Ozark mountains. I tweaked slightly on the Husky centerline WDH and it sits level and is steady as a rock on the interstate at 60-65 mph. It even does ok in crosswinds.

I have been reading threads on this forum and keep seeing a reference to using "LT tires" on the trucks. I am not exactly sure what they are referring too. Our Lariat came with the stock Wranglers and at this mileage (now 10k) I didn't plan on changing them yet. Any help is appreciated.
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Old 07-16-2016, 01:15 PM   #2
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LT tires are light truck tires and have a higher load/weight rating than P rated tires.

I had Load Range E Michelin LT tires on my F150. Towed so much better than P (passenger) rated tires but at expense of slightly stiffer ride when not towing.
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Old 07-16-2016, 01:37 PM   #3
Coachman 312BHDS
 
Join Date: Jul 2016
Location: Southern Missouri - Ozarks
Posts: 225
Thanks. I see the difference. It seems to tow well now but is it safe until I upgrade them? There are only 10k miles on the truck and tires but I read a lot of folks get rid of these Wranglers by 20k anyways.

P275/65R18
Tire Size P275/65R18
Product Code 183538418
Speed Rating T
Load Index114
Load Range SL
SidewallOutlined Letters
Uniform Tire Quality Grade (UTQG)500/A/B
Max Load (lbs) 2,601
Max Inflation Pressure (PSI) 44

Approved Rim Width (in.)7.5 - 9.5
Measured Rim Width (in.)8.0
Section Width (in.)11.0
Tread Depth (in 32nds)13
Outside Diameter (in.)32.1
Revs Per Mile 651
Price $212.00

LT275/65R18

Tire SizeLT275/65R18
Product Code179029492
Speed RatingQ
Load Index 123
Load Range E
SidewallOutlined Letters
Uniform Tire Quality Grade (UTQG)
Max Load (lbs) 3,415
Max Inflation Pressure (PSI) 80

Approved Rim Width (in.)7.5 - 9.0
Measured Rim Width (in.)8.0
Section Width (in.)11.0
Tread Depth (in 32nds)14
Outside Diameter (in.)32.1
Revs Per Mile 651
Price $255.00
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Old 07-16-2016, 01:39 PM   #4
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Join Date: Jan 2015
Posts: 101
Load range e Toyo open country at, my most favorite tires ever

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Old 07-16-2016, 01:57 PM   #5
Coachman 312BHDS
 
Join Date: Jul 2016
Location: Southern Missouri - Ozarks
Posts: 225
Now my question is - It seems to tow well now but is it safe until I upgrade them? I do see a lot of complaints about a stiff ride with the E's. The Toyo's are reasonable.
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Old 07-16-2016, 09:26 PM   #6
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Your tires are rated at about 2400 per tire. 4800 capacity on a 4000 lb axle sounds safe to me. A handful of people upgrade their F150 tires to LT E rated. When was the last time you saw an F150 with a flat on the side of the road? Buy a TPMS for the trailer tires (if you don't have one already) before spending money on new truck tires. Trailer tires have flats way more often than truck tires, even if they are P rated. All that being said I would upgrade to a LT C rated tire when you are ready since you are towing heavy. Even the heavy duty payload F150 comes with C rated LT tires now instead of E rated.


2010 F250 5.4L 3.73
2011 Flagstaff 831FKBSS
Equal-i-zer 4pt 12K
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2010 F250 4X4 5.4L 3.73 LS
EQUALIZER E4 1200/12000
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Old 07-16-2016, 09:42 PM   #7
Coachman 312BHDS
 
Join Date: Jul 2016
Location: Southern Missouri - Ozarks
Posts: 225
Like this one? Can even do the spare. What is a best bang for the buck one?

https://www.amazon.com/6-Tire-Flow-T...s=tpms+systems
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Old 07-16-2016, 09:42 PM   #8
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Posts: 2,417
Load e.

Takes the squishy out of the truck when towing.


2016 Sabre 36QBOK
2015 Ram 3500 CUMMINS
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Old 07-16-2016, 10:07 PM   #9
Coachman 312BHDS
 
Join Date: Jul 2016
Location: Southern Missouri - Ozarks
Posts: 225
These seem to well rated on this and other RV forums. Yes - definitely at least a C load rating on the next set of tires.

https://www.amazon.com/Truck-System-...t_sims?ie=UTF8
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Old 07-17-2016, 03:18 PM   #10
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Location: Albuquerque
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LTs are tougher

I was driving my Jeep Liberty on gravel roads, and driving faster than most (27 years in the Forest Service). I had a flat every two weeks. After I upgraded to LT (Light Truck) tires, I haven't had a flat in 8 years. If you're not overloaded, your P (for Passenger Car) rated tires will probably do fine. They are lighter, so you'll get better mileage and they'll last longer.

The tires you probably want to upgrade are your trailer tires. Mine were C rated, and 7 years old when I bought my ROO. I had 2 blowouts in 4 trips. I upgraded to Load Range D, and Speed Rating M (81 mph). I believe I have solved that problem. Most trailer tires are rated for 65 mph. But if it is hot, and they are near max load, you can't drive that speed without blowouts.

My load Range D tires are rated at about 1930 lbs. with dual axle. Your rig weighs around 7000 lbs. empty, and up to 10,000 loaded. I'm guessing when you load water, propane, and gear, you're over the rating for a Load Range D tire. A blowout on a traier, can cause a lot of damage. That's why everyone recommends a Tire Pressure Sensor system. It is on my list. Look for ST tires that are speed rated M.
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