upgrading to 285/6518 tires
The above mentioned tires are 1" bigger on the OD than my stock 265/7017 tires. Can I use my 17" spare to reach a a tire shop if I have a flat. I'm going to 18" tires because the 285/65-18 tires ar...
Forum Discussion
Personally, I'd want to be within 1/2" of diameter. If you go more than that, you may run into problems with ABS wheel speed sensors. Also on the 18" tire, h ave you considered 275/70r18? That's a stock tire size for the newest RAMs. So it's a good bit cheaper to buy that size than 285/65r18 for many more brands of tires. the 275/70r18's are only 1/2" taller than the 285/65r18. As for 17" tires, you can look at 285/75r17, but they have dramatically less capacity at only ~3200 lbs per tire versus 3650 lbs per tire with the 18" rim sizes.
On my F-150 when I upgraded to LT tires, it was actually cheaper for me to buy a 34" tire versus a 33" LT tire. I had 20" rims and the 275/65r20's were cheaper than 305/55r20's. The reason was that 275/65r20's are a stock Super Duty tire size, so manufacturers move more of that size tire and it's easier to source at more tire shops. So just more food for thought.
On my F-150 when I upgraded to LT tires, it was actually cheaper for me to buy a 34" tire versus a 33" LT tire. I had 20" rims and the 275/65r20's were cheaper than 305/55r20's. The reason was that 275/65r20's are a stock Super Duty tire size, so manufacturers move more of that size tire and it's easier to source at more tire shops. So just more food for thought.
