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Neither am I. Obviously, P-rated on a SuperDuty wouldn't work out so well. LR-C or D were "rated" plenty for the weight, and I'm talking EMPTY. I just didn't like the feeling at highway speeds.
Neither am I. Obviously, P-rated on a SuperDuty wouldn't work out so well. LR-C or D were "rated" plenty for the weight, and I'm talking EMPTY. I just didn't like the feeling at highway speeds.
I've heard the same from others, but I have no experience with that. All of my Super Duties came from the factory with LR E tires, and most tire shops won't put anything less for fear of liability.
I've seen plenty with Ds. Usually large tires with a lift (=not loaded/pulling heavy, usually). But I've seen Ds on stock rims & height as well. I mean, the PSDs weigh 2000 lbs more than 150s bone stock, so there's a pretty big difference, so you're right -- LR-Es are best. Mine was a 2wd 250 with stock aluminum wheels and tire size with the 7.3. I weighed in at about 7250 lbs. empty. I think the 150s are a bit over 5000 depending on options, IIRC.
I just hit 40k miles on the original tires on my 2011 Lariat Supercrew, and they've pretty much had it. Any thoughts on LT tires vs. P tires for an F-150? Now that we have a sizable trailer, I'm tempted to go with LT-rated tires for their extra load capacity. My concern is that, for the 97% of the time when I'm not towing, I'll be paying a price in ride quality, handling, and possibly even fuel mileage. I'm looking at the LT and P rated versions of the Firestone Destination A/T and Goodyear Wrangler All-terrain adventure with kevlar on Tire Rack.
So, the LT-rated tires have a load capacity of about 3400lbs, vs. 2700 for the P-rated tires. But the LT tires also weigh about 10 pounds more each. That's a pretty big difference in unsprung, rotating weight. I like the idea of having that extra margin of safety when towing or hauling heavy loads. I guess I just want to know if anyone has made this switch, how big a difference is it in a light truck like mine?
Or am I just overthinking it?
Did you continue using the tires past the wear bar? If so can be flirting with danger. Tires are not getting the full benefit of the tire design and construction if driven significantly past the wear bar. Especially towing a load.
Did you continue using the tires past the wear bar? If so can be flirting with danger. Tires are not getting the full benefit of the tire design and construction if driven significantly past the wear bar. Especially towing a load.
No, I'm not quite to the wear bars yet, but I'm darn close, I'm sure. I was going to put off purchasing tires until fall, but since I'm going to be towing, it's time to do it now.
What tires do you have now? Some of the F150's come with fairly soft tires that kind of suck for towing heavy loads. I know my GoodYear Wrangler SRA's were a little to soft while my GoodYear Wrangler Adventure with Kevlar are nice.
What tires do you have now? Some of the F150's come with fairly soft tires that kind of suck for towing heavy loads. I know my GoodYear Wrangler SRA's were a little to soft while my GoodYear Wrangler Adventure with Kevlar are nice.
I have the RSAs. Not too impressed with them. On my previous truck, I replaced the OEM Pirelli Scorpions (absolute garbage) with Goodyear Silent Armors, and was very happy with them. Those tires don't seem to be available anymore.
I think you will like the Adventure with Kevlar P rated tires. They are a big improvement over the SRAs. I have then and like them. They are also very good in the rain and snow.
I can't imagine a situation where I'd make the switch to an LT-rated tire.
Unless you have an HD model which comes with them from the factory, your max rear GAWR is 4,050 lbs. The P-metric tires are good for 5,400 lbs. If you're anywhere close to that heavy, you are way over the rating of the wheels, brakes, axle, and springs. The factory P-metric tires are the strongest link in the chain, nothing else in your rear suspension or driveline is rated for 5,400 lbs.
I haven't heard from someone who's towed heavier than I have with my '13, and my P-metrics felt just great with 16,000 lbs behind me. Three other Super Duty owners, also members of FTE, felt the same.
I agree.
IMO if you need LT tires on the F150 for towing, you may need more truck. I absolutely hated the ride of my F150 with LT tires. It rode like a completely different truck, a crappy truck that is. They were on my truck for 5k miles.
I have towed up to 8k lbs with my F150 with both P & LT tires. I never felt a difference towing, other than the rough ride.
I can't imagine a situation where I'd make the switch to an LT-rated tire.
Unless you have an HD model which comes with them from the factory, your max rear GAWR is 4,050 lbs. The P-metric tires are good for 5,400 lbs. If you're anywhere close to that heavy, you are way over the rating of the wheels, brakes, axle, and springs. The factory P-metric tires are the strongest link in the chain, nothing else in your rear suspension or driveline is rated for 5,400 lbs.
I haven't heard from someone who's towed heavier than I have with my '13, and my P-metrics felt just great with 16,000 lbs behind me. Three other Super Duty owners, also members of FTE, felt the same.
I switched all of our pickups at work from P to LT tires and the tires certainly last longer.
06-25-2015, 08:30 AM
