Biggest tire on stock 20s Laramie with Off-road no Air

[Jwebb81]

Looking for biggest tires I can fit on my new Laramie Blackout with the off road package. Currently has those tiny 275/55s on there an looks like a kids toy. Let me know.

 

[Pro-Hunt]

I am curious as well. Hope you get some answers.

 

[1997pgt]

Well i don't know about the BIGGEST but i can tell you i just put new Cooper Discoverer AT3 XLT's on mine today in a 275/65R20 (34.1x10.8) and i have absolutely ZERO rubbing or issues, rides flawless. I do NOT have any level or lift on my truck just the factory off road package.

 

[Kratz87]

Well i don't know about the BIGGEST but i can tell you i just put new Cooper Discoverer AT3 XLT's on mine today in a 275/65R20 (34.1x10.8) and i have absolutely ZERO rubbing or issues, rides flawless. I do NOT have any level or lift on my truck just the factory off road package.

This looks great. You mentioned “no air”. I know the off-road package comes with a 1-in lift which probably allowed you to get the 34.1 inch size. Any idea what would be different WITH the installed air suspension along with the off-road package?

 

[1997pgt]

This looks great. You mentioned “no air”. I know the off-road package comes with a 1-in lift which probably allowed you to get the 34.1 inch size. Any idea what would be different WITH the installed air suspension along with the off-road package?

That's correct 1" higher than factory ride height with the ORP, with the air ride you'd be able to easily clear 34's and probably 35's. A lot of guys run bigger tires on the air ride equipped trucks because you can adjust it to where it doesn't rub unlike the non air trucks like mine, but i've heard conflicting information about the ORP WITH the Air Ride, i've heard that it gives you 1" higher lift over the regular Air Ride and then i've also heard some guys say you don't get any extra lift since the Air Bags take the place of the 1" suspension lift. But as far as clearance goes you'll have less issues fitting bigger tires than a non-air ride truck. I know they have some flash or module that you can plug in on your truck and it'll trick it into keeping it in Offroad 1 mode even at highway speeds that way you essentially get a lift on your truck without any true modifications.

 

[Kratz87]

...heard conflicting information about the ORP WITH the Air Ride, i've heard that it gives you 1" higher lift over the regular Air Ride and then i've also heard some guys say you don't get any extra lift since the Air Bags take the place of the 1" suspension lift.

I heard back from the service/parts manager at my Dealership. They state that the air-ride suspension sits on top of the 1” lift kit when the ORP is included! The test will be when I have a conversation with the tire experts and measure as they are installed. I am going to TRY for the 35’s and settle on the 34’s if I have too. Now...width is the question! More to follow I am sure!

 

[BeauxXL1200]

Don’t have the off road package but I’m about to have Nitto Ridge Grappler 285/60/r20s installed on my stock height Ram. A fellow forum member has them on his Big Horn that is also stock height and he says there’s only a slight rub against the wheel liners at full lock turn. These tires look really good on his Big Horn. A coupe of pics.