Thanks for the review, disappointing to hear about the AT3 underperforming. One review, but a good example of what to expect on gravel and snow. Sad to hear about the ‘free trial’ hassle.
How are the Ridge Grapplers? Nitto is a Toyo company curious if Nitto proves to be superior.
Replacing my Michelin LTX Defenders LT265/70/18 on my 100 soon. AT3’s were at the top of my list, but no longer.
The Michelins have performed very well (over 100k) mostly interstate miles. 1 puncture, 1 sidewall tear. Will be doing more fire roads (TN/NC) moving forward. Went with LT tires after 2 sidewall issues on BFG Rugged Terrains (warrantied) in the first 6k. Definitely slows down the 4.7L, and with more mountain driving in the future looking for a lighter tire. Want to move back to a non LT tire - will check out the Continentals.
The Defenders are actually an excellent all around tire, run fine on sand and gravel, smooth/quiet on the interstate. Just look boring and no sidewall protection. I will take a look at the Continentals -
— Kevin
@kevin2i, sorry for the late reply. I'm loving my Ridge Grapplers! I've put about 7,500 miles on them now and still haven't worn through the little 'step' the tires have on the tread blocks. I have a pretty good feel for them in most conditions, and they've been pretty true to the reviews I read on them in this forum.
My AT3s were LT275/65R18 (31.9" x 10.8") while my new RGs are LT285/65R18 (32.6" x 11.2"), so this is not a perfect apples to apples comparison. Other mods included the addition of 3/4" spacers to compensate for the shift in scrub radius with the larger tire. The tires fit fine without the spacers (no rubbing), but once you push them out they rub the front mud flaps. Easy fix though. The spacers give the vehicle a nicely balanced and much improved stance, look, and handling (IMO this is the perfect tire/wheel/spacer size combo as the tires don't stick out past the sheet metal, just perfectly aligned).
Versus the AT3:
- RGs are slightly
QUIETER. Yes, I was truly shocked. Louder than a highway tire of course, but not much. At first I noticed more vibration in the steering wheel (which annoyed me for awhile) and the tires seemed to get a bit louder at 55 mph, but I don't notice either anymore.
- Road handling is about the same. My wife couldn't tell the difference.
- RGs in the 285 size are about 7 lbs (each)
heavier. There was a 1-2 mpg penalty for the size and weight.
- RGs have superior off-road traction. I've used them on some of the same courses as the AT3s and they did things the AT3 wouldn't. Conditions have been mainly in dry, but some wet dirt and rock as well and I have been VERY pleased. Got some chunking spinning the wheels trying to get up steep solid rock, but nothing that bothered me too much. They don't pick up rocks on gravel. I haven't had them on the same insane gravel roads as I put the AT3s through, but no doubt they'd do better if for no other reason than the larger tread-blocks.
- RGs look much beefier, have MUCH better sidewall protection, and feel better off-road, especially when aired down.
- Soft snow seems about the same, but I'd probably give the edge to the RGs.
- RGs are worthless on ice. (I'm a big believer in winter tires, so I don't drive these in cold, snow, and ice if I can help it)
- RGs chatter and skip a bit under full breaking (big tread blocks). I have the Tundra front brake mod which has the power to stop them quick. Just a guess, but I'd say the AT3s would have a shorter braking distance on asphalt.
Final thoughts, I liked the Continentals and they were certainly more comfortable on the highway, but I'll never go back to non-LT tire on this vehicle. Yes, there's a penalty, but when you consider the LC/LX is 300-1000 lbs HEAVIER unloaded than a Ford F-150, passenger tires really have no business on this rig if you're doing any off-road. Just my $0.02
RGs made it up. AT3s didn't.
Nitto Ridge Grappler LT285/65R18
Toyo Open Country ATIII LT275/65R18
Continental TerrainContact 275/55R20