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I have a 33ft/6100lb dry trailer and use Bilstein 5100s all around, Sumo Springs 1000# out back and the Blue Ox very tight - link 11 from the open end(was getting some sway and porpoising on links 9 & 10).
I have no issues with the stock 20" Dynapros but do put them at about 49psi cold in the rears and about 45psi in the fronts.
We just completed a multi-week trip with the trailer going from Austin, TX to Durango, CO (2000+ miles there and back) and never experienced any sway. Maybe a few times we got pushed by a wind gust but the F150 & trailer moved as 1 unit.
Towing mirrors are a great addition!
My only complaint with the F150 is the front brakes were getting pretty hot coming down Wold Creek Pass - 10,800ft(rotors at 480f). I adjusted for more trailer brakes and took it slow the rest of the way down.
Oh ok. So how much stiffer is the ride unloaded compared to the P tires you had?? That's my concern so my other half wont complain to me as much lol.
the difference between P rated and E rated tires when filled to vehicle door specs is minimal. No significant harshness. Inflating my rears un say another 10 psi when towing I can feel the stiffness but not annoyingly. When towing though the ride is much better. Feels more planted and handles much better- even at the door spec (38 psi). I suppose if I were to air up the tires to maximum air pressure (80psi) it would be much more noticeable.
I don't agree with those that think LT tires on the F-150 are better for towing than high-quality P-Series tires pumped up to the max PSI on the sidewall when the F-150 is not overloaded over the GVWR of the truck. I have Michelin LTX Defender MS P265/60R18 tires, and no problems at all when towing at close to the GVWR of the F-150. I wore out the OEM tires which were P-Series Michelin LTX A/S for mostly towing at slightly over the GVWR of the F-150, and liked them so much that I replaced them with as close to the same tire as Michelin made.
Even when severely overloaded, with the tires pumped up to 44 PSI cold, I've had no problems with the P-Series tires on my F-150. I replaced the OEM shocks at about 30k miles with Bilstein 4600, but didn't notice a significant difference in ride or handling with the new shocks.
I have hundreds of thousands of miles experience with LT tires on heavier-duty pickups, but I had to have LT tires on those trucks because of weight capacity, not ride or handling
Thanks for all the help! We brought her home today and I couldn’t be happier! Our dealer was awesome and did a very detailed walk through (almost 4 hours) looking at literally every square inch and creating a list of things to look at / fix.
The drive home wasn’t bad, but going 60 on the interstate got a little sketchy at times (Admittedly I forgot to air up my tires too). I’m going to take it to a large parking lot tomorrow and make sure the WDH is adjusted properly. Lack of towing experience and only being 33 doesn’t help either.
Last edited by Magnetic157; 08-18-2018 at 09:51 PM.
I don't agree with those that think LT tires on the F-150 are better for towing than high-quality P-Series tires pumped up to the max PSI on the sidewall when the F-150 is not overloaded over the GVWR of the truck. I have Michelin LTX Defender MS P265/60R18 tires, and no problems at all when towing at close to the GVWR of the F-150. I wore out the OEM tires which were P-Series Michelin LTX A/S for mostly towing at slightly over the GVWR of the F-150, and liked them so much that I replaced them with as close to the same tire as Michelin made.
Even when severely overloaded, with the tires pumped up to 44 PSI cold, I've had no problems with the P-Series tires on my F-150. I replaced the OEM shocks at about 30k miles with Bilstein 4600, but didn't notice a significant difference in ride or handling with the new shocks.
I have hundreds of thousands of miles experience with LT tires on heavier-duty pickups, but I had to have LT tires on those trucks because of weight capacity, not ride or handling
I agree 100% with you on this. The P series 18s I used on my 13, both stock wranglers and replacement Master Craft Courser HSXs were excellent towing tires at full max GVWR, and towing a 9 to 10K trailer at times. The edge went to the Masterceafts, as they were slightly higher load index of 116 vs 114 for the Goodyear Wranglers. They seemed to ride a bit better loaded. The LRC tires are load indexed to 113(2535 per tire),the 114 indexed GY wranglers were rated at 2601, the 116 Mastercraft is rated for 2756 per tire. On an F150 that has at max a 4800lb rear axle, any of the tires exceed its rating. The 18 inch p series are designed only for vans, trucks, and heavy SUVs, and are designed with towing and hauling in mind. There is no need for LR E on the 150 for weight issues, maybe added puncture resistance at most.
Ditto on the LT. Mine tows better with the P series 20" than the LT 18". Considering they both have the exact same weight rating, they both handle the load equally. I put 5k mile on my Coleman towing with 20's and P tires, and not a single complaint or wish they were LT.
Ditto on the LT. Mine tows better with the P series 20" than the LT 18". Considering they both have the exact same weight rating, they both handle the load equally. I put 5k mile on my Coleman towing with 20's and P tires, and not a single complaint or wish they were LT.
Not arguing with your experience (Shorter Sidewalls Flex Less) but are you comparing the passenger car rating to a truck rating? Or did you divide the 20" Tires Passeger Rating by 1.1 to get the truck rating?
My 2756 lb Rated Tires only have a 2505 lb Truck Rating.
Truthfully the test for passenger car ratings and truck ratings are disimilar enough even with the Derate we are probably comparing apples and oranges.
08-16-2018, 03:08 PM
