The Biggest Tire on Your Ram Truck | The Ultimate Tire Fitment Guide 

Finally someone explains proper tire fitment. I have bought 35x12.5x20 to put on my stock rims with a level kit and now I know it will work. Thanks.

Holy crap. Just found this video today. You guys are amazing. Thankyou both so much for clear, well explained ideas and fitment guidelines. Can’t wait to use this information. Will be subscribing just because your the first I’ve seen to take the time to explain thing clearly.

Best video I've seen regarding tires on my 2020 Power Wagon. I wish I'd found it before cruising a bunch of useless forums. THANKS!

Awesome video. Made this account just to tell yall great job. Best laid out video on the internet with clear and concise information.

thanks for confirming this information. ive been researching this for the last few months and everything is right on. see you guys in moab

I have been searching for a video like this for two weeks!!!!! Pouring through the forums everyone claims that in order to run 35/12.5/R20 on a stock 4th Gen 2500 you’ll need spacers or a level to mitigate rubbing. All I needed was one video to tell me that I could run 35/12.5 and not have issues to pull the trigger on some Kenda Klever RTs for my Mega Cab. Thanks!!!

This was a good video on tire fitment for rams not many companies at this time have RU-vid videos supporting the platform

What a great video !! I got a used 2018 Ram 3500 last year and looked all over to see what the biggest tire I could put on it with my camper so I can go on dirt roads and hide out ....... Wa La ..... I can put on the 35x12.5x 20's that other sites and people said would not fit. Thank you guys so much !!

I went with the 17" Methods that CJC sells and put 37" Ridge Grapplers on em. My 2500 Cummins has a 2.75" and 1" Thuren leveling lift on it. I love my set up and really only trimmed a tiny piece of pinch weld on the back of the front wheel wells.

I can confirm that on a 2013 (so this goes for '10, '11, '12), 35×12.5 on stockers lightly rubs the stock upper arms. With Thuren high clearance arms zero rub. Toyo 37x13.5 R17 on aftermarket 17x9 +20mm offset rim and Thuren high clearance arms and minor trimming to the pinch weld there will be minor rubbing on the upper links at full lock.

great video !! thanks

Appreciate the third gen love too. Cheers!

Well done. Guess it's time for bigger tires next round :)

Very informative! Thanks!

Hope to see you guys in May. Thanks for the video. Need to set up my 16 power wagon before then.

It's crazy to me that I've never seen anyone mention the concept that stock/lift height doesn't matter at stuff which is where things touch. I've got a 22 Ram 2500 Laramie that I'm getting into now, thinking 37's. Really appreciate the info as I dig in to wheels/tires.

I always run the same combo. Bilsteins with level kit. 17x8-8.5 inch wheels, 33s on my 1/2 ton and 35s on my 3/4 ton trucks, then Hp tune and speedo calibration.

Good job guys learned a lot. God Bless!

Great video! I'm still new to real trucks. Bought my 2020 Laramie 2500 6.7 a few months ago. All my prior trucks were little Nissan and Toyota. Been thinking about upgrading to 37's on aftermarket wheels. Glad I'll be able to fit them with very little modification! But maybe i should do something about that pesky CP4 first...

Great video !

Sounds awesome go for the 39s!

Love the vid. Thanks for the info. What kinda front bumper is that?

THE ANSWERS TO LIFE HAVE BEEN GIVEN!!!! REJOICE!!! (the beast quoute)

THANK YOU!!!!!!!!

great video. you have everyone covered except the newer rigs. what about 39's on a 75th anniversary wagon ?

I watched this video like 15 times to make sure I got it all 👍

39s hell yeah!

Thumbs up man!.

Good Chandel I hope you get more subs

Yes do it. It will look bad ass

Those are both badas* trucks. Great simple easy to understand video. Thank You!

2018 powerwagon 4inch custom 4link front and rear ,correct drive shaft angles, front axle .5 inch forward rear axle .5inch back 37 x 13.5 toyo mud country +18mm no body rub front or rear , full lock rub on radius arm. Going to 38x15.5 front axle 1inch forward have to make custom 1inch offset drop track bar bracket to work , see what happens gonna be reel c close!!!!

I have a lift question for the 2019+ Power Wagon. I’m piecing out a Thuren 1.5” level kit for my 19 PW and I’m a bit confused how the suspension geometry will be effected. From head on perspective, I’m re-centering my axles with Thuren adjustable track bars. That geometry I understand. Now from the perspective of the side. When the axle drops lower than the factory position because of the taller coils, do the radius arms pull the axle toward the center of the truck also slightly rotating the axle?

Nice

Clean ass rig. I just lifted my 1998 in front and I got 17” rims. Curious as to what tire I can fit underneath her.

Amazing info!!! 🇺🇸⚓️🇺🇸⚓️🇺🇸 can you make a video going over the ratio next haha even though we talked already haha 🤣

Don't do it Mike lol. Your 37s look plenty bada##. U pull heavy airstream a bunch. Cutting and trimming and possibly new gears= more bucks plus more fuel mileage hit. Sweet sweet truck Mike. I ordered my Dethloff engine and trans skid. Looking forward to meeting both u guys in May.

I have a 2006 dodge truck mega cab 1500. I upgrade the tires to 285/70/17. I wanted to go up a little more with stock rims and shock spring no lift. What’s the highest I can go without getting it rub. 305 or 315. I’m thinking of putting 305/70/17 on but scared it might rub. Let me know what u think is best with out rubbing on all stock rims and no lift kit.

Yes do it

hello thanks for the info, whats the wheel size on the 2019?

Do you know if you can front spacer a AEV LIFT PRODUCTS?

35x12.50 WILL RUB on wheel liner plastic under suspension compression on stock height 2019+ 2500

Thanks for the info -great video- I'm thinking of going with the 35x12.5x20 toyo AT 3's on the stock wheels for my 2019 ram 2500 truck. The final deciding factor for me i and my question for you is -will the new 35" tire will fit in the spare tire location - I don't think I want to carry my spare in the bed of I don't have too

Please don't nail me for this question, but I am sticking with metric sizing as most of my driving is on-road but I do tow a camper in the snow in the winter. I am looking at a set of 325/65 R18 for my Ram 2500. This is around 34.6" x 12.8". Can I still expect some minor rub just due to the width? Or should I just stay away from this width all together?

2018 PW. I got the AEV 3" lift. Falcon tire- 37zx12.5. On a full turn a slight nip in the rear/bottom WW. A 12" cutout, replaced with a rubber strip. AEV is one of the quality lifts. I wished I shopped a bit more. Like this mans shop's quality too. Do they make 38z? Also the Falcon tires have a tad of road noise, too. A little miss led with the tire noise and taking the front dip even.

wish they would talk about old 2nd gen i have a 95 1500

i had a 2006 2500 hd and within a year of running 35's on it my steering box was leaking. if we want to go to 37's what steering modifications or assistance should we consider ? also what about fender flares ? if we go to offset after market rims do we need to new fender flares as well ? thanks you guys ! great info. keep it coming...

Do it!!!

I appreciate the video. I am reading in a number of other truck sites on the web that for a 2019 2500 4x4 I will need a leveling kit for 35x12.5x20 wheels and tires otherwise they will rub. So I would need a leveling kit correct?

does this hold true for a 2022 2500 ram, I'm looking to put on 35x12.5 Nitto tires on a 0 offset. will this work? thank you

Love the video. Question. Nitto makes a 37x11.5r17 and I want to try and fit it on my 2023 power wagon with stock wheels. Do you think it will work? Being an inch narrower than the common 12.5 width, do you think it will rub?

I have a bare bones stock 2003 3500 single wheel base. Can I fit 285.70.17 on it with stock rims? I would greatly appreciate and help.

I am running 37/12.50/20,what offset do I need,with little rubbing

Got a 2012 Ram 2500 MegaCab 2WD. Leveling kit. Riding 305/55/20. Looking to ride on some more tire maybe going smaller wheel don’t want any rubbing. Can I get some feedback

I was feeling good about my purchase of 20x10 wheels with 35x12.50x20 tires until you started talking about the offset. The wheels i chose have -24 offset and theyre arriving tomorrow, now im nervous.

I might have missed it. But did he ever answer if 35x12.50 would fit 2015 stock 1500. Or is he just talking about 2500 and bigger? Thanks

What about us Gen 2 guys. Just acquired a 2001 RAM 2500 with the 5.9 Diesel. Have stock 16" wheels and stock wheels. Looks like the truck Skipped Leg Day.

Can I fit a 37 on a 2001 dodge 3500 with a 4 inch lift

I have a 2019 ram 2500 big horn 6.4 hemi completely stock with 18" wheels. Just to make sure I heard you correctly, I can run 35x12.5 without changing anything? Great video BTW.

Im wanting to put the largest diameter tire on my 2021 Ram 3500 Limited 4x4 Mega Cab NOT Dually with stock 20 inch wheels. I just rolled over 100k Km on it and Ive only had it 2 years. I did a factory order. I have currently worn through about 50% of the fourth set of tires already. Which I know is insane. I have to have somewhat of an agressive tire as I haul heavy loads through mud and snow daily in the business Im in Im also on the highway alot obviously by the miledge. I forgot to mention I also have the 6.7 HO Diesel with the Aisin tran. Its a very heavy truck and Im hauling loads up to 18000 lbs plus my truck at 9500 lbs. Im eating tires like crazy. Now heres what my latest research has led me..... BF Goodrich K02 have the highest heat rating which is something I never considered but I am now. But here is my other dilemma. I also have the air bags in the rear suspension for leveling. I dont want to do any lifting, no wheel changes, or and mods that way. I just want to know with all of that in mind what is the largest diameter tire that I can put on it with no rub or very minimal rub. I dont care about having a wide tire. Im not after a look, Im after functionality with more circumference to last longer. Prefer 10 or more ply tire for strength. 37x12.5 ? 37x11.5? 39x11.5? or is it 35x12.5? Any replies would be greatly appreciated. Thankyou

Aev suspension kit allows 40’s to fit Ram 2500

I have a 2012 2500. Leaf spring rear. What sort of options do I have for a larger tire? You mentioned mostly 2013 and up.

Can you provide an example of a good combo for 37s and offset wheels to try and not rub and trim? 37x12.5 is enough for me. Just trying to see what how much trim is required.

If you add 37s at your recommend size, should you do any gearing changes ? How does it effect towing and mpg on a 2021 stock power wagon?

So if a lift thats

Great vid! Maybe you can clarify, does all of this criteria also apply to the Ram 1500? I'm about to purchase wheels & tires within about a week or two. Thanks

Well done video! Re: 4:15 when he says you can put 35 x 12.50 on the stock wheels without any lift. Does that apply to the dually wheels as well which are 17 inches?

What about a 2012 1500?

Awesome video! How about 0 offset with 35x12.50xR17 bf goodrich Ko2 for 2020 Power wagon No lift? Does it need some modification?

You may have touched on this but I was wondering I would could keep 3.42 gears to go up to 39s ('16 RAM 2500 6.7, tow a 36ft trailer weekly in summer) with a 4" lift or would I need to regear to 4.10? Thanks!!

It looks like you have the AEV 17x10 wheel in that video. Do you think 37x13.5r17 tires will fit on that wheel with plastic and pinch weld trimming?

what front bumper is that

Great video and loaded with information. I have a 2018 Ram 2500 and currently running 285/65r20 with 20X9 +18 wheels. Your video stated 37x13.50 would need slight trimming or rubbing. Do you know if 37x12.50r20 +18 offset would fit without and rubbing or trimming needed?

I know all you guys are talking bout 2500 - 3500 rams but i have a 2012 1500 express that came with 275-60-20 now i have probly about 1/2" between tire and upper a arm i would love to go to 35" tires no bigger but most are 12.50 wide so what would you reccomend 1.5" hub centric wheel spacers or if new rims what offset would i need ? My rims are chromed plastic glued on factory im gonna plastiy coat em black if i can keep em what would be my best bet

I have a ram 3500 dually with stock suspension and 17 in rims and you said you could put 35s on stock suspension would I be able to do that with my truck?

I have a 2019 Ram 1500 bighorn I was looking to fit 35x12.5x20 on the stock chrome 20inch rims I know you said it would fit on a 2500 what about my 1500? I have not found one legit answer anywhere on this question..... thanks for the help

Will the same concept apply for the 1500s?

42’s??

Would the AEV flares help clearance the 39s without having to push the front axle forward like with a true 40? Obviously getting new wheels at the same time.

What battery impact wrench did you use ?

Wasn't sure if I caught it mentioned, however, what about a 2014 Dually 3500 Tradesman stock suspension, currently has 245/75R17 and they are silly small. What's the biggest tire that can be put on those wheels and also whats the biggest wheel and tire that can be put on without rubbing if I was inclined to go with a completely different set of wheels and tires? (Role of the vehicle is Daily/Tow&Haul, also if it matters the tires needs to be All Terrain).

If your gonna spend the money for 39" just stuff 40" really just need AEV front pucks(sorry hitech aluminum shock mount) AEV Drag link, right hub assembly/mount bracket for drag link, lower radius. You have the rest of kit

Do y’all think I could fit 20x12 -44mm with 33x12.5R20LT on my ‘06 2500 Cummins with a 3 inch leveling kit?

What about a 2020 dodge ram power wagon can I fit these tires on mine without removing anything

What gearing are you running on that truck to handle the bigger tires?

have a 2019 ram 3500 dually and want to put the biggest tire on stock wheels.what sizes are possible ?

How can you fit a 39. But not a 37x12.5r18 on a -18 offset with an aftermarket front bumper

Is it bad for the auto transmission and 4x4 system to go from 235/50/19 (oem size) to 235/55/19? I want a more comfortable tyre but i'm afraid that the bigger overall size would affect the automatic transmission and 4x4 system over time

Will a 35" tire on the stock wheels fit where the spare goes?

I have a 2020 ram 2500 bighorn, 6.4 with 8 speed auto, 3:73 ratio. How much or will going to 35x 12.50 on stock wheels affect towing my 10,000 pound travel trailer (not a 5th wheel)

I think I'm going to stick with 35 (315/70). I want a full size spare in stock location, and good towing. If I went off highway more, I'd go to 37's. It's just not worth it for me.

Why are you supposed to stay away from a zero or negative offset? Wouldn’t that give you more clearance?

I have a stock 2018 2500 w/18x8” rims. Will 35x12.5 still fit? Keep seeing minimum 8.5” wide rim rqd

3:50 to 4:20..... 35"s will fit with no trimming. Just put 35"s on my 2023 3500 4wd...... Need to trim fenderwell.

So will a 10 lug conversion with 22 1/2 rims witch is a 40 inch tire fit on a 2017 dodge ram with a leveling kit?

Will the 35 / 12.50 fit on my 09 Ram stock setup ?

Great video, but what about 2nd gen Rams? I have a 97 1500

You already have the tires on the wheels ready for install so you know you want to do it. This is not a matter of need (we don’t NEED anything) lol. #nike #justdoit

are those centramatic rings on your truck?

I have a 2019 Power Wagon and want to put bigger tires on the stock 17x8 rim. Do snow chains on 35x12.5s or 315/70s create a problem?