LT vs ST's - Canadian Tires cries "Illegal!".
I replaced all 4 tires on my 35' horse trailer in the last 2 weeks - Canadian Tire had some excellent LT tires that were on 50% off "end of line liquidation" discount and the price was too hard to res...
Forum Discussion
BFL13 wrote:
When did it become law that the tires have to be rated "to carry the weight of the axle" using the axle's weight "rating" as stated above?
Our truck has a rear axle rated at over 10,000 lbs. But the RGAWR is 6,084 lbs, which is what the two E tires can take at 80psi as singles.
OK, I know we're trying to get the thread back on track, but I missed the window of opportunity to respond to that.
First, I worded my statement poorly on the axle rating thing, but it's still not recommended to put tires on an axle that are not able to carry the rated weight of that axle. On something like a horse trailer (as in my scenario) where the axle loading can vary by potentially thousands of pounds depending on empty vs loaded, pony vs Clydesdale, it's possible you could be under the rating of an under rated tire when empty, but then grossly exceed it when loaded.. On something like an RV where the load is pretty much the same +/- 1000# or so, and especially when manufacturers are commonly putting axles barely rated to carry the GVWR of their trailers to begin with, there's a very real possibility that it would result in overloaded tires.
BFL13 wrote:
Our truck has a rear axle rated at over 10,000 lbs.
Your truck does NOT have a GAWR of 10,000 pounds. Your GVWR (the ENTIRE weight of the truck including any load carried on/in it) is 9200 Pounds - Your RAWR (Rear axle GAWR basically) is 6084#, and in that era trucks GM was known for putting tires on that couldn't even carry that, further potentially limiting the carrying capacity of the rear axle in 5'th wheel / GN configurations.
