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Old 06-16-2015, 05:42 AM   #1
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Americanrascal's Avatar
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Ford Super Duty Owner
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Location: West Georgia
Posts: 438
Dolly ST vs LT tires.

I currently have ST tires on the tow dolly (it came with them) for our MH and so far no problems with about 6-7 K miles on them now. I used to say the same thing about my TT and fiver when we were towing our RV's- no flats so no problems with STs. Then one day I had REAL problems with the STs made in a far away country. Blow out on the fiver. That was quite an experience. Ever since then whenever I am running ST's I sleep with one eye open.

When preparing for travel I am fanatical about air pressure and inspecting the ST dolly tires. I keep my speed at 60 or below when towing as ST's are limited to 65 mph (frankly I wouldn't go that fast anyway). I am many hundreds of pounds (a thousand more likely) below max tire rating so the dolly is not overloaded.

The debate I am having is whether to switch to supposedly much stronger LT's on the dolly or continue with the ST's which have more strength for turns etc. but may have some quality questions that hover around them.

Has anyone dealt with this ST vs LT issue on dollies- and what say ye the jury?

Joe a/k/a "Americanrascal"
2016 Winnebago Adventurer 38Q +tow dolly
8th RV to sit in our driveway in 35 years
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Old 06-16-2015, 06:02 AM   #2
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I had Carlisle 205-75-14 ST biased ply tires on my dolly. They developed a strange wear pattern on the outside edges, requiring replacement. I searched for non-trailer replacement tires, but couldn't find anything with the same load rating. I don't believe you can get an LT tire that small. I ended up buying the radial version of the same tire. I've gone about 2000 miles on them, but so far so good.
Fran, Mary & Zoey (silver Cocker)
2012 Roadtrek 190 Popular & 2015 Montana HC 343RL
'16 Chevy Sonic LTZ Auto Hatchback 4-down
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dolly, tires

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