I would think that your local tire shop should be able to find a suitable
replacement in the 7.00x15 or 195-205x15 range. As long as the tire
has the proper weight rating, fits the rim, and has adequate clearance
in the wheelwell, it should work just fine. The LT rating generally
means a heavier carcass and typically a more agressive tread for duty use
heavier than passenger car tires. Your trailer tires don't necessarily
have to have the light truck (LT) rating. You may want to lean toward
8 ply bias construction tires if you can find them as the sidewalls tend
not to flex as much as a radial tire. I think that causes the trailer
to track better. However, radials will give a softer ride for the trailer
and contents primarily because of the sidewall flex in radials. I would
suggest LTs in a radial tire for their heavier construction. Which
ever you opt for make sure you have adequate reserve in the weight rating
for your trailer and load. I have had both radials and bias in tandem
and single axle trailers, and I prefer the bias ply. My '57
Overlander has tandem axles and (factory stock) 8.00x14.5 8ply bias construction
mobile home tires and wheels. Those tires are still available, although
pricey I'm told. I like the way they tow better than radials (just
my opinion).
Roger
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