Hi guys I have a 2015 Silverado 1500 and I have a question about the spare. I got a flat the other day and when I went to put the spare on, I discovered the factory spare is a different size. The dealer is telling me it is okay to run on the spare even when carrying a load in 4WD. I just wanted to get a second (or third) opinion if this is going to hurt the truck in any way. The truck has P265/65R18. The spare is P275/70R17. My understanding is they are the same diameter so should be fine.
Any thoughts?
Thanks
Jenny

 

Welcome to the forum. You need to post your question in the Silverado section per the red note.

To answer your question, yes it's OK to use that spare.