Have a 2018 3500 Megacab, has about 50k on it and time to start thinking about new tires. I want to stay with the stock size. It runs and drives fine for me. Had a 2002 that I modded a lot, and I loved that truck but this one I am leaving alone.

On the 2002 I ran several sets of Nitto Terra Grapplers and was very happy with them. So I wanted to go that route again. But Nitto doesn't make them in the stock size I need. Which is 285/60R20. But I see they do make them in 285/65R20 which is about inch taller but about the same width or 295/60R20 which is a little less than a half taller but also about an inch wider.

So both are similar just wondering which way you guys would go to stick as close to stock as possible, Or if anyone has run one or the other of these sizes and can provide feedback.

Thank you.

Can't figure out how to rewrite my signature line. Changed my other info though.

Truck is a 2018 3500 Mega cab 4wd SRW, with rear air suspension, HO, Aisen trans. Drive it every day, lots of highway mileage, some medium to light heavy towing, and the only off-roading I do is around my small hobby farm. So I don't need an aggressive off road tread.

 

I am running the 295/60R20 on my 2020 tradesman from Toyo and they fit great. Here are a couple of pictures. The wheels are off my 2017 Limited

 

Looked through my pictures, but don't have any, I will see if I can get a couple this weekend and post.

 

Here is one more...

 

I would go with the 285/65R20. It stays closer to the stock width and should keep the truck feeling more like factory setup. The 295/60R20 is wider, but not much shorter, so I think the 285/65R20 is the better match overall.

Since you do a lot of highway driving and some towing, I would stay with the narrower tire. It should track better and may help with fuel mileage too.

I ran Terra Grapplers before as well and had good results with them. I do not think you will have any problems with the 285/65R20 on your truck.