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Discussion Starter #1
Hey all,
I’ve been running Toyo AT’s in a just under 35”x12.50” size (metric but don’t remember exact number) with a rating of 123S on the side. They are about shot and I picked up a nearly new set of 35x12.50 Delium MT tires with a rating of 121Q. I’ve been told Ford says to run a “125” rating. I’ve never had a problem with my Toyos and have had them for about 8 years.
My question is, will I have any issue with the 121Q rated tires? I don’t pull a trailer any more and the truck is my weekend warrior/camping truck so never has a heavy load. Discount Tire said they won’t mount them due to company policy and Les Schwab (whom I bought the Toyo 123S tires from) said it wouldn’t be a problem.
I don’t plan to keep the truck a whole lot longer and like I said, I don’t pull any kind of trailer any more. Both tires are E rated. Am I ok to mount these?

Thanks for any help.
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