We’ve debated this many times and it always comes down to the cost beyond just the tire. We added the full skid system from metalcloak and so far that has been a life saver. The cost of that would have been well worth it even with taller tires and taller lift. To be honest it’s a heavy tire to change on a trail but I would hate to struggle with the weight of anything bigger!

37x12.5 KO2s measure in at 35.5 diam. With that gives a good compromise. That with a 2.5 lift and a method beadgrip wheels makes a perfect Overlander/point and excelerate combination... a real go anywhere jeep with a little spare change left in your pocket.

2020 Gladiator sport here with 37s on 488s with flat fenders. I work on a landfill and I'm off road a lot, nothing extreme mostly because I'm too old. Nobody tailgates me in the rain because of my four rooster tails 😅

37s on my diesel rubicon was the move

Based on one of your previous videos I equipped my 22 Rubicon Gladiator with a set of 35x12.5x17 Toyo Open Country ATIIIs (load range C) on Method 703s with 5.78" backspacing. This combination is actually lighter than my factory wheels with Falken ATs. Gas mileage stayed the same (with 4.10s) and actually improved with 4.88s. Debating Nitto 37x11.5x17 Recon Grapplers for my next set.

35 can handle any trail it's all the driver . We see it in Moab all the time.

Diesel gladiator here. I went with BFG 37 since it's not actually true to size. Bigger than 35, not exactly 37, lighter and fits a full size spare. Transmission still runs through all the gears.

@michaelquatrano6189

13 күн бұрын

Can the Speedo be recalibrated for the larger size?

@MAI-zl3li

13 күн бұрын

@@michaelquatrano6189 yes it can. I went with an option AEV has for calibration because I didn't have a tazer at the time, but I'm sure the tazer can do the trick as well.

My personal experience is that a gladiator on 37s with a 3.5" lift and f&r lockers is the best combination of off-road capability yet still road friendly and can still haul stuff as designed while getting decent mpg. I have this setup and have wheeled the Rubicon, other local 6-7 rated difficulty trails, flogged it at the Oregon dunes, and wheeled it in deep snow. Has yet to strand me. Truck gets 16mpg on the highway, hauls dirt bikes in the bed regularly, and is still comfortable to drive. P.s. If you ever get a chance, you should try the new kenda klever mt2 tires. They have been phenomenal in all the above conditions and walked up obstacles on the 'con that other jeeps with nittos were spinning on.

@yrrah89

Ай бұрын

You singlehanded convinced me to go this route. 37 with 3.5 lift it is!!!!

I have the 37x12.5 KO2s on stock Mojave wheels. There is a claim the they weigh less than other 37s- and it's true. The specs claim the tire is 36.5 diam new, but when I adjusted the computer, I did a courtesy check and found them to be 35.5 diam being like the best of both worlds, I decided not to complain (other than the fact that the techs that installed them programed the truck to 37 diam.- which made me think I was getting over 20 mpg) Other factors in th change- 2.5 lift and 1.25 spacers in front only

Right to the point, informative video. Very well done!

Always great content!

Great video! Thank you for making.

Great video, addressed all the questions and hesitations I had. Just bought a JT Maxtow, wanted to upgrade but not have to make major changes to gears, etc. This convinced me to stick to 35's, even though I love the look of 37's.

Great video, I have the same Gladiator, color too! I’m ready for 35s now!

@blakemarchand6650

4 ай бұрын

Get 37s ! You won’t regret it

I usually say "meh" on these and disagree on so much but you hit it all perfectly and even hinted at lighter tires for normal all around. I have tried to help so many and they end up miserable thinking I have no clue because they can't think clearly when getting the bug. I will have them all watch this.

In most cases the skinnier tire actually lays down more contact patch than the wider tire. They break down sooner, easier, and more thoroughly than the wider 12.5"

@trashbandit2449

4 ай бұрын

No clue what I'm talking about here but I would assume at a reasonable tire pressure and sidewall (and properly sized wheel) that the 12.5 would have a larger contact patch almost always? And let's be honest the wider tires look better haha

@DrivingLine

4 ай бұрын

The 35x11.50 Trail Grapplers I had worked great. There’s definitely been more 11.50 offerings coming out which is always nice to have the choice.

@Nobikedave

4 ай бұрын

@@DrivingLine was that with stock wheels?

@DrivingLine

4 ай бұрын

Yes. Stock Rubicon wheels.

@hdm-nm

4 ай бұрын

@@trashbandit2449 Contact patch when aired down depends a lot on the tire construction. BFG KO2/KM3 flex so well aired down that the differences are minimal between tire widths, but many popular off road tires do provide a wider contact patch with the more narrow tire versus the same tire in a wider option. There's a guy here on YT who did some pretty thorough testing to show this.

Great video! 👍🏻

I run a 38.13.50.17 on KMC grenades 17x9 3.5bs -38 offset aired down 7 psi in snow with a light setup it darn near floats where 3/4 1/2 tons trucks get stuck also I n run 5:13 Dana spicers and definitely upgrade those balljoints people!

Right when I hit the like button, you were at 37, so I guess I'm going to 38s!

@DrivingLine

4 ай бұрын

I like the 38’s too. 😎

@blakemarchand6650

4 ай бұрын

Hell yeah ! Haha I have 38s on my stock wrangler 392 it’s boss af

@onebridge7231

3 ай бұрын

I have 38’s Nitto Trail Grappler with Clayton 3.5” Overland on my Gladiator Rubicon. I have to lift the spare into the bed which sucks at my age of 51, but I like the 38s.

@carlosfaustinoalvarez4822

2 ай бұрын

[7/3 6:04 p. m.] +52 984 118 2021: Disculpas Hermanos no podré asistir me salio un contratiempo. Nos vemos en la próxima. Pasenla Super. [7/3 6:21 p. m.] +52 998 231 5635: Hermanos ya está listo todo para recibirlos

@user-lm9qi7th1u

2 ай бұрын

😅😮​@@DrivingLine

I went with 35/11.5/17’s because of your white Galdiator

Thanks for the comparison of 35s v 37s. I have been on the fence about which way to go. I just installed a Accuair system and need to upgrade wheels and tires. I have been thinking about the 37s. I just do moderate weekend wheeling. With the air suspension I can lower down for highway driving and get back some MPG. As long as the rest of the stock drive line can hold up to 37s I can replace gears later if needed.

But can you flex as much with a 37in compared to 35in tire with a 2.5in lift

Dam. This video you produced is so informative. A lot of time, money, energy, and knowledge went into this KZread viewing.. Went down this road with my diesel wrangler, and gladiator. Good job.amazing video

@DrivingLine

4 ай бұрын

Thank you.

@blakemarchand6650

4 ай бұрын

@@DrivingLine Mr. Ali quick question would you know why my rear axle is off centered about 4 and 1/2 inches to the right ? It looks ridiculous to me but the thing drive straight and has no problems

@DrivingLine

4 ай бұрын

That’s a big offset. The track bar is what determines the axle placement side to side. Either you need an adjustable one and/or there is an issue with the track bar bracket. If you take it to a good alignment shop, they can give you the exact degrees and measurements that your tracking is off front and rear. That’s what I would do.

@blakemarchand6650

4 ай бұрын

@@DrivingLine if the track bar is the issue would it stand out immensely that it was bent or something? Because it looks dead straight and then track bar brackets look straight too. But the rear Clayton off road springs are both pitched to the right. It’s just so weird to me because I would think that would make it crab walk but it’s driving dead straight

@DrivingLine

4 ай бұрын

It might not be super obvious because the track bars have a few bends in them. If you have the high clearance track bar that works with the larger spare tire, that one would be even more challenging to see if it was bent. The track bar bracket, however should be pretty obvious if there is an issue there.

Good video 👍 👍

Good video. I am in the process of doing this right now. I am leaning more toward 37s, maybe 38s for my gladiator rubicon. I'm going to do a terra flex 3inch suspension first, then tires. I do have plans to go to a 5.13 gears as well.

I have Gladiator Rubicon Launch edition. Replaced the oem with the 35. Almost went with the 37 but wanted to stay with the OEM rims. Recently I was so tempted to go with 37 next time around but glad I found your video! I am gonna stay put at 35! Thank you!🙏

Can u also make a similar video regarding the jlu? 😊

Hey buddy. Thanks for the helpful, and informative video . I’ve been running 35s Open country AT with 17 inch fuel wheels on my 2023 Gladiator. Is it still a good idea to upgrade to 37s Nitto Ridge Grappler ? Thanks for your advice.

@DrivingLine

3 ай бұрын

The Ridge is a great tire. As I mentioned in the video, moving up to a 37 can present a few challenges. I prefer 37s over a 35. It really comes down to what you need/want.

Ali, I literally just picked up a Rubicon Gladiator, but I have the manual transmission. Thoughts? Also, I’ve been keeping an eye on you since the red Ranger you had years ago. You’re a real OG, dude.

@DrivingLine

3 ай бұрын

Thanks! I actually just saw my old Ranger a few weeks ago. I sold it to a friend of mine. I like the manual, you just tend to need a little bit more differential gearing whenever you’re moving up tire size. So, 4.10 might feel a little less powerful with your setup on a 35 over a Gladiator that has the eight speed automatic.

How about the Nitto 37x11.5x17 they make on stock rims and Diesel Rubicon

@DrivingLine

3 ай бұрын

You could run an 11.50 on the stock wheel, but will need a wheel spacer to keep it from rubbing the control arms in the front.

Ali you hit it right on the head. Great info of our community.

Can you give a breakdown on the 392 rubicon unlimited 2021, looking to run larger tires than the 33 “ and what is needed for off-road trails also

@DrivingLine

4 ай бұрын

I’m running a 2.5 inch lift on my 392 with 37s. If you are happy with the stock shape, you can actually run a 37 by adding a 2 inch bump stop on the rear axle. If you want to just go 35, you just need a 1 inch bump stop outback. I’ve done a few videos on this subject that you can find on the Driving Line channel. I’ll actually have a video on all of the 392 upgrades I’ve done on mine coming to the channel in the next week or two.

@stillkicking8693

4 ай бұрын

@@DrivingLine thanks

And if you only use on road, any HT tyre is ok, right?

Liked and subbed. Just bought a 2023 Gladiator Rubicon today. I honestly don’t know how much I’ll use it off road, even at all. Bought it mainly to take the grandkids for rides in the summer with the roof off. I was thinking of going 35-12.50R17 or 11:50’s on a o offset rim. What size and brand of lift would you suggest and is the 0 offset wheel a good choice? I was also looking at doing a 2” AEV spacer kit. What are thoughts on that.

@DrivingLine

2 ай бұрын

You actually don’t need a lift to run a 35 inch tall tire. You can do so easily without. If you would like to lift your Jeep, there are a lot of fantastic options. An AEV spacer lift is a good option as spacers will not change your spring rate. This means, if you’re happy with the ride quality now, it really won’t change with their lift kit. That offset would work fine, but you will push the tire a little bit away from the fender.

@pjfan173

Ай бұрын

@@DrivingLineI’ve decided to put the 2” AEV lift on it. What is your opinion on 35’ vs 37’? Can the 37” cause and transmission shift problems or rubbing?

Ali I really enjoy your videos. I have a 2020. Jeep gladiator with 37 inch tires I have a 2.5 inch Terra flex lift with a small spacer fronted rear as well. I also have a Terre flex rear extended travel kit which spaces out my driveshaft reducing the angle. My question is, can I go to a true 38 inch tire with replacing and or worrying about longer driveshafts .? I really value your opinion as there is so much misinformation on the Internet. Regards. Aaron Dusseault.

@DrivingLine

4 ай бұрын

It depends more on your bump stops than anything else. If you have a 3 inch front bump stop and a 2 inch bump stop in the rear, you can go with a true size 38 just like I did on my gator Gladiator. Backspacing is important. I’m using wheels with 4.75 that are 17 x 8.5.

@kayaduss

4 ай бұрын

@@DrivingLine so I don’t need to worry about drive shaft length.

@DrivingLine

4 ай бұрын

I don’t know the details in terms of suspension travel of your kit, but I can tell you with my 3 inch lift you can retain the factory driveshafts.

Just based on esthetics you must go with 37" no question about it.

@ShiftyIntentions

20 сағат бұрын

Lol…this comment is cringy. Even stock Gladiator Rubi’s look great on 33s. 35s are plenty. Mall crawling on donks with 37s looks terrible.

I just got in contact with a shop that has been wheeling a Jeep on a 4.5" Metalcloak long arm lift and 40s (trussed axles with 5.13 gears) and man it road amazingly plush. I was surprised to hear that the axles in JT's can hold 40s if your not ridiculous with it (it also has RCV's If i remmember correctly) and has ridiculous amounts of flex. My concern would be with 5.13's and 40's - how long will it last ? can i still use it as a truck with 40s ? What about 37s ? how much truck do I give up to gain more Jeep capability ?

@DrivingLine

4 ай бұрын

My Gladiator with the Flatbed has 5.38 gears and 40’s. There are definitely times on the interstate that I wish I had even more gear. I personally don’t think it’s worth moving to 40’s on stock axles. The main advantage of 40’s is to increase its performance off-road. I think you could do more (with less worry) with a 37 or 38 and 5.13 gears.

@joewolfe642

4 ай бұрын

@@DrivingLine I feel like 40s on a JT are great for doing Jeep stuff - but if you still want to tow/haul stuff its too far in that direction. I'll stick with my original plan of 37s , 4.5" lift and 5.13 gears on my JTR.

Considering a Wrangler Sport JK, I intend to do a mix of trails with medium to high difficulty, mud and long journeys on highways. What could you recommend me? And what changes would be interesting to make?

@DrivingLine

2 ай бұрын

At least 3-inches of lift (EVO MFG, Rock Krawler, or JKS area all my top picks) 37x12.50R17 Nitto Trail Grappler Dynatrac ProRock 44 front axle with RCV axleshafts RCV rear axleshafts 5.13 gears Stubby front bumper with 10K winch Rocker guards (I prefer frame mount for hardcore wheeling, but body will work if you are easy on them.) MCE high clearance fenders HD tire carrier if you need the cargo room, or just put the spare inside of the Jeep for more difficult trail riding. ARB Air Lockers Crossover steering (draglink flip) if you are going with a long travel suspension. PSC Motorsports hydraulic assist steering kit if you are going to be rock crawling frequently. The main thing is don’t skimp out on good tires and suspension. It’s the backbone of the Jeep and will make you love or hate it. I've done a fair amount of JK features and build videos on this channel that you can also check out. Just look under my Inside Line playlist.

@renanrubini3865

2 ай бұрын

@@DrivingLine Thanks for the list. Regarding the suspension, what is your opinion on Fox and Danytrac? And finally, with 5.13 gears, can I get better recovery and acceleration than the original gear? Considering the original tires and gears and the 5.13 with the 37s tire.

@DrivingLine

2 ай бұрын

I honestly didn’t realize that Dynatrac now offered a suspension kit for the JK. I don’t have any experience with that, so I don’t really want to weigh in on it one way or the other. Their Suspension for the JL was great. Really nice riding. In terms of differential gearing, 5.13 will give you the most power and acceleration with a 37 inch tall tire.

Will a 37 inch spare tire fit with the stock rear track bar if it's aired down?

@DrivingLine

2 ай бұрын

In my experience, a true to size 37 will still hit the rear track bar. You have exactly 36.5 inches from the track bar to the receiver. It’s really tight.

Do you have a 38" MT tire you recommend?

@DrivingLine

26 күн бұрын

I like the 38x13.50R17 Nitto Trail Grappler M/T

Any preference on Nitto’s vs Falken’s in 35’?

@DrivingLine

3 ай бұрын

I prefer the Nitto’s.

I have Clayton off road HD springs and a factory wrangler 392 shocks (which suck) It’s to stiff. I want a much more squishy and softer ride . Can I just get new/better shocks or do I have to get rid of the Clayton off road springs too ? I’d like to keep them if I can, any recommendations?

@DrivingLine

4 ай бұрын

The 392 shocks are valved lightly. So, if you feel it’s too stiff, I would recommend swapping out your springs.

@blakemarchand6650

4 ай бұрын

@@DrivingLine dammit lol. what Springs should I get if I want a really squishy ride for faster moving off road and keeping the factory shock ? Any recommendations?

@DrivingLine

4 ай бұрын

I’m not sure there is a short enough spring on the market that would pair well with the stock shocks. I can tell you that BDS and JKS 3 inch lift springs run on the soft side, but I’m not sure how those would pair with stock shocks. You could maybe do shock extensions with those springs.

@blakemarchand6650

4 ай бұрын

@@DrivingLine how would the extension effect the ride ?

@KaosJeep

4 ай бұрын

Why not pair your Clayton HD springs with the Falcons Clayton recommends? They’re adjustable and you’ll be getting the most out of the springs you already have. The stock shocks on 392s, Rubis and XR Rubis are trash. Some Falcons or Fox like Clayton recommends with their kits will set you straight.

Everybody’s obsessed with gladiators do you do any videos at all anymore of wranglers? 😢

@DrivingLine

4 ай бұрын

Next video will be a Wrangler one.

@Shane7son

4 ай бұрын

@@DrivingLine Sorry bro I wasn’t trying to be mean but thank you

First of all, forgive me if my spelling is not very correct, I am French 😅! I ride a Mojave and am considering upgrading to bigger tires. My use is mainly travel, hunting, overlanding and a little off-roading but nothing extreme. I already have the AEV borah rims and was ready to buy BF KO2 35 12.5 x 17, but after watching your video I will certainly opt for 37'' I love NITTO tires but difficult to find in Europe and make them come double the price between taxes, customs duties and transport. So I'm going to stick with BF KO2s. I would also like to be able to drive with peace of mind by improving what is necessary to have a reliable unit. My question is: is the Specer Lift 2'' AEV sufficient for my use and what gear kit would you recommend (there are far too many references on the market) and in France it is very difficult to find someone who will guide me. I can't afford to make a mistake in my choice, I will have to bring these parts from the USA. Thank you in advance and congratulations on your channel. always interesting content

@DrivingLine

3 ай бұрын

It sounds like for what you are doing, the 2 inch AEV lift will work perfectly fine. Good luck with your build and thank you for watching!

How much lift for 37’s? To take advantage of max flex.

@DrivingLine

4 ай бұрын

So long as you add a 1 inch front bump stop, you can properly cycle a 37 inch tall tire with as little as 1 inch of lift. However, if you really want to get more off-road performance, I would recommend going with at least a 3 inch suspension lift. There are lots of great options on the market (JKS, Rock Krawler, EVO, and so on). If you want the absolute most suspension travel, you’re probably going to want to look at an Evo manufacturing coil over kit.

Would it be a video about Sahara and Sport Wrangler models to get the right size tyres. I think there is a missing spot about 35’s on those that loosing 8th gear etc. we need a good video about it too ;)

How are the ball joints holding up with 37 s

@DrivingLine

2 ай бұрын

I’ve never had an issue with the stock ball joints.

They make the wheel in 8.5 wide... it makes no sense for them to handicap the vehicle with the 7.5 ones... specially for the Rubi/Mojave trims

Do check out Method Bead Grip Wheels/Rims..

@DrivingLine

2 ай бұрын

I actually have Bead Grip Methods on my gator colored Rubicon Gladiator. It’s a great wheel.

I hope I (accidentally) drive over a sea of nails with my JT. Then I’ll have to replace my 35s and can go to 37s 😂

Get some portals and get serious

¡I am te 1,000 Like!