Update on my Treadwright Guard Dogs.
They are GONE!!! Yippeee!
I finally replaced them this week. We had about 25K miles on them on a 1999 Grand Cherokee. BFG AT carcass, size 265/60-16s on stock wheels. The tread wear was very strange. One tire looked like it was practically new, one was totally bald, one was cupped badly and the last had great tread but started to separate/delaminate from the carcass (the reason I replaced them all). They had been rotated at approximately 5K mile intervals.
The only way I would EVER buy these again is for an offroad-only vehicle. They were loud from day one and only got worse. Much worse. Dozens of people commented to my wife that they could hear her vehicle coming down the road 15-20 seconds before she appeared. She couldn't even talk on her cell phone if she were on the highway.
I've ran bias swampers on my YJ before and am very familiar with loud tires and a bad ride. I'd say the treadwrights were eventually as loud as swampers. They road horribly as well. They always had a vibration of the tread beating the pavement. After the uneven wear the were so rough it felt like a ujoint was siezed.
They were so bad my wife insisted on HT-type tread for the replacements. We went with Dunlaps and they make it feel like a brand new vehicle.
For comparison I just put 35-12.50-15 Cooper Discoverer Stts on my TJ. They are an aggressive tread but super smooth and quiet. Nearly as quiet as the BFG ATs they replaced.