shepherds56 wrote:
Have a 2008 GMC 2500HD SLT Crew Cab. At this time running 286/70/17, looking at buying Michelin LTX M/S2 "E" load range but they don't come in that size have to go down to a 265/70/17. Possibly buying in the future a 35ft 5th wheel, do I NEED to have "E" or can go with a "D" range tire?
According to Tire Guides, your vehicle came originally with Load Range E tires LT265/70R17. Also, the placard should say the specified pressure for those tire is 60 psi front / 72 psi rear. Yup, that sounds like Load Range E to me.