Tire Question.

[CStank89]

Hey guys, I’ve tried searches but it seems everyone always talks about the 20” rim. I have a 2021 1500 big horn 4wd on stock 18’s. I have installed a 2.5” level. I’m wondering if I can fit 285/75r18s. If not, what’s the widest and tallest I can go without wheel spacers.
Thanks

 

[cervelo15]

I have 285/65/20 on mine with the Mopar level and stock BH night edition rims

 

[CStank89]

I appreciate the response. I would assume 285/75/18s should fit a stock 18 than. I’m just wondering if the 75 would fit. I’m not sure about the clearance from the 75 compared to your 65. You having the 20 from what I thought woukd already give you more clearance from things such as brake caliper on the back side as opposed to my 18.

 

[cervelo15]

I appreciate the response. I would assume 285/75/18s should fit a stock 18 than. I’m just wondering if the 75 would fit. I’m not sure about the clearance from the 75 compared to your 65. You having the 20 from what I thought woukd already give you more clearance from things such as brake caliper on the back side as opposed to my 18.

my guess is the 75 would be tight. I knew 65 was my limit whether it was a 285 or 295 size tire.

Not sure if this would help, but might give you a visual if you use the tire offset and tire size comparison calculators. This really helped me get a visual of the tire size I went with:

TireSize.com - Compare Tire Sizes, Specs, Prices & more

Use our tire size tools to calculate specs, speed, gear ratios and more. Browse tires by size, vehicle, or brand and compare prices online all in one place.

tiresize.com

 

[MagicMikey]

285/75's are pretty tall (almost 35"), so you may rub somewhere at full lock, but from a width perspective, I'd imagine you should be good in terms of clearing the UCA's, etc. For whats it worth, I'm running a 295/70/18 on my truck with ORP and about 2" level and no issues here.

 

[CStank89]

285/75's are pretty tall (almost 35"), so you may rub somewhere at full lock, but from a width perspective, I'd imagine you should be good in terms of clearing the UCA's, etc. For whats it worth, I'm running a 295/70/18 on my truck with ORP and about 2" level and no issues here.

Thank you. That’s what I’m going with after some more thought (295/70/18). Either discovery Stt pro’s or Falkin Wildpeak A/T3w.

 

[TheWaterman83]

Hey guys, I’ve tried searches but it seems everyone always talks about the 20” rim. I have a 2021 1500 big horn 4wd on stock 18’s. I have installed a 2.5” level. I’m wondering if I can fit 285/75r18s. If not, what’s the widest and tallest I can go without wheel spacers.
Thanks

I cannot completely vouch for this but I can help you work through it. The offset in all trims of that year is about 19mm.

Ram 1500 2019 - Wheel & Tire Sizes, PCD, Offset and Rims specs

Ram 1500 2019 - Find out the correct alloy wheel fitment, PCD, offset and such specs as bolt pattern, thread size(THD), center bore(CB) for Ram 1500 2019

www.wheel-size.com

There is not different in your trim's stock wheel offset from the Rebel, Laramie, etc. All are either 8-9" width which also lines up for those tires.

ORP's and Rebels, 285/70/18's should actually fit without rubbing, bone stock. ORP's and Rebels are pre-lifted from the factory at 1" though. 295/70/18's are where the pre-lifted trucks start to rub without a level/lift. With that being said:

Once again, keep in mind:

ORP/Rebels w/ 2" lift = 3" of overall lift.
Non-ORP/Non-Rebels w/ 2.5" lift = 2.5" of overall lift.

In summary:

285/70/18's it will be very close with your 2.5" lift but you might be ok.
295/70/18's with a 2.5" lift on a non pre-lifted truck I cannot see how it would not rub. Might not be super bad, but I am pretty sure it will.

Not to come down on anyone comparing your situation to theirs with an ORP/Rebel but...they have a 1" advantage already built in.