The Light Truck tires, I believe, are tougher, heavier tires. If I did rock crawling I would consider the LT's. Not sure why they wouldn't get a warranty, other than possibly the target market might be more abusive? Just a guess…
fastcar
Yeah, I did some research, including reading a stickied tire thread on here, about the differences between LT and P tires. As stated, LT will usually have additional ply in the sidewalls and be heavier/thicker with deeper tread and can handle much higher pressures for towing. However, with these particular tires, the P is only 1/32" more shallow in tread depth and the load range is only lessened by 400lbs or so per tire. That said, the P rated tires are good for something like 2,700 lbs per tire (by memory, might be off =/- 100) so that's 10,800 lbs, which is far greater than any weight any 3rd gen I know should carry.
For someone who does an 85/15 (or any ratio >= 51/49) asphalt to off-road, it just seems like going LT is a way to say, "yeah, I offroad and my truck is beast mode and I like it to look like it's plowing through the Sahara even when it's really just picking up sand for my kids jungle-gym.... From Lowes. So, I got the LT's."
Aside of rigs that are truly tuned to live the majority of their lives on the trail, I just don't see the benefit of this particular tire on our particular vehicle in the LT version. Then again, someone with a true trail rig probably wouldn't be using this tire, so it's a null point.
I'm going with the P's unless someone much more tire-wise than me explains differently.