These tyres are currently available. They're not LT but LI 110 and the sidewalls don't particularly bulge on an 8" rim, unlike some Duratracs in other sizes. The blocks and voids are somewhere between those of my LT245/70R17 version (quite large) and the 255/55R19 version (much smaller). A GC owner who has only driven on them for 2 days says they can only be heard at about 70 kph and even then only just, but what they sound like with some wear could be different.

I was aware that the GY Silent Armor had been discontinued in this size and wondered if a Duratrac version would be forthcoming. Well, they're here.