Prior to about 2002, the factory equipped tire on most, if not all, Trailmanors were Carlisles. If you dig back into the archives from the 2002 and earlier timeframe you'll find a lot of posts about blowouts on those Carlisles. One of the reasons that a lot of people did the round wheel well modification on the pre-02 TMs was to minimize the damage that would come from the seemingly inevitable tire blowouts. After the factory changed to Marathons in '02 (most likely at TM owner request), the number of posts about tire blowouts has dramatically dropped.
Some people never had problems with Carlisles. Other people have had blowouts on Marathons. However, looking at the overall empirical evidence from the numbers of blowouts reported to this board by tire brand, my conclusion is that Marathons are far less likely to have a blowout than Carlisles. When I replace my tires...after two more towing seasons...there's absolutely no question in my mind that it will be with Marathons.
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Ray
I use my TM as a base camp for hiking, kayaking, mountain biking, and climbing Colorado's 14ers
The Trailer: 2002 TM Model 2720SL ( Mods: Solar Panels (170 Watts), Dual T-105 Batteries, Electric Tongue Jack, Side AC, Programmable Thermostat, Doran TP Monitor System)
The Tow Vehicle: 2003 Toyota Tundra V8 SR5 4X4 w/Tow Package (Towing & Performance Mods: JBA Headers, Gibson Muffler, 4.30 gears, Michelin LTX M/S Tires, Prodigy Brake Controller, Transmission Temperature Gauge)
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