Originally Posted by jimandpam
Hello all, first time to post. I have a 2007 Sierra model 295RLT. On the front is a placard calling out to use LT235/85R16/E tires @ 80PSI. The tires currently on the trailer are ST225/75R15/D. (These tires were on the trailer when purchased). Question, which tires should be used to replace current tires?
Is this a trailer new to you or did you purchase it new?
You should use the same type and size tires listed on the trailer's certification label unless you can prove it to be in error.
Look at the date code on the ST tires. The past owner may have just put new tires on it to make it look better for a trade-in or sale. Those ST tires are less expensive than any of the LT tires in the size on the liable and they don't provide the load capacity of the tires on the label.