Bigger Tires (33’s to 40’s) on Dana44 axles - Jeep Wrangler Eco Diesel Build Update

I mounted 40 inch tires on my Eco Diesel Jeep Rubicon Unlimited. I tell you why, how, and what things to consider when going this route in the modification journey.
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#jeepwrangler #ecodiesel #40s

[@KrokemOutdoors]

Did you catch the true tire size measurement of the Cooper Stt Pros in the video? Check out Northridge4x4 KZbin channel for more tutorials: youtube.com/@northridgenation

[@brohammer]

looks like about 39.5?

[@mikepierson3097]

Yep… no tire is 100% true size but STT Pros and Nittos are the closest.

[@Handwerkers]

Awesome video as always @KrokemOutdoors ! That was my sarge green JL on the lift at the beginning of the video! Very happy with the build and Northridge's work! 😀

[@artm6723]

I love this! But we all know modding is such a rabbit hole! That being said I'm so glad you're taking us along for the ride! I'm sure this is going to be awesome!

[@markengle2199]

This into song has me like “Blame it on my ADD. SAIL!”

[@trimha1]

What an upgrade!!! That’s awesome!!

[@TrailTime.]

I’ve ran the same wheel with 39” Km3’s and 5.13’s in 44’s for years now. Nate was right, just remember you have big tires and you’ll be good.

[@Adrian-rn1ym]

Is yours a gasser or diesel ?

[@southwestoffroad]

This looks really good. I'm sold on getting 44"s vs tons. I've seen plenty of people with the right 44 setup and 40's that are running just fine.

[@AndrewTurner251]

That is super cool, looking forward to see how it does on the trail.

[@bigbrownmab189]

Can't wait for the next video, keep on rockin stay blessed !

[@keithelder]

Love the color choices you made.

[@TACTICALNOMAD]

@Edward Shin, Great dive into the mods you're doing! 👍🏼👊🏼Personally, I would truss any 5-lug axle running 40s, especially with such aggressive tires like Cooper's. Axle wrap and excessive torsion is a very real thing with all of that dynamic weight turning on such a small axle shaft. Maybe ask Nate @Dirt Lifestyle to help you do that?! And with 1-ton axles and 40" tires you won't lose ground clearance. I had Mickey Thompson 40" tires on my '87 Bronco w/1-ton F-350 axles back in the day and I never had a ground clearance issue, and only a one time minor issue with being high-centered down a deeply rutted mud trail. I ran 37" STT Pros on my '99 F-350. They are a GREAT tire. They are the only tire I'd run over BFGs and Wildpeaks, but nowadays they are cost prohibitive compared to BFG & Wildpeaks.

[@t.o.f.t.s.]

Time to plan a trip through the Rubicon.😃😃

[@jacobboughton506]

You went really deep on the gears, for the diesel. In the JL/JT Eco Diesel Jeep pages the general consensus is 38-40’s is 4:56 and 4:88 for more of a trail only side. Speaking of 40’s only on the Eco’s 4:10 get 20mpg 4.56 get ~23mpg 4:88 18-20 5:17 16-17 Sweet spot for most have been 4:56. I’m on 38’s still rolling 3:73’s and on average get 18.5-20mpg. I would love to regear but not for awhile. Still have loads of torque and I do tow. I’m pushing 68k miles on our 21. Banks power was a nice power bump but for about same price GED has emission complaint tune that been getting great reviews as well. Now EOC across the north border has full on weight loss and seem to be the best on everything from a spectator’s perspective. Looks great.

[@flyfisher530]

Awesome video Ed, love the 40's Dusty is rocking now.....time for an Epic adventure again!!!

[@KrokemOutdoors]

I’m looking forward to it! 🤝

[@ssilva9510]

I wish some one would do a panic stop comparison with 40s compared to 33s

[@TrailNewbie]

Love it! Man, Dusty is coming together - can’t wait to see it in person in late March! 👊🏼

[@KrokemOutdoors]

I’m stoked for it! 👊

[@WolfOverland]

🤩 super jealous!!! Rock crawler status now!!!! Love it. Congratulations bro!!!

[@KrokemOutdoors]

Thanks man!

[@hoss6048]

Dang you are getting Rubicon ready for sure.

[@stevebratten6592]

The info about letting joints flex will be very helpful building out my classic Ford Ranger

[@darrensaunders4635]

I have a bent shift on my gladiator with just 37s and I baby this thing on technical trails. Need chromoly shafts for sure. I just have to put mine in now that they've arrived.

[@KrokemOutdoors]

Yes, put those babies in and enjoy the trails 🙌

[@kennethvalentine946]

looks awesome! making me want to go bigger.

[@BentNotBroken1970]

Dusty looks great! Looking forward to seeing how everything performs over time. My goal in two years is for a similar setup on a diesel Gladiator so this is going to be fun to watch.

[@TheOneWhiteST]

Love to see this! I went with a 3.5" lift and moving to 37s" later this year. Still getting decent MPGs believe it or not Lol!

[@kayloradventure]

37's are a good sweet spot. My JL 2.0L turbo is getting over 18mpg in mixed daily driving.

[@SpawnOfOden]

Always love your information in these videos, Ed!! You keep it real, like explaining the cons to upgrading to the higher tire size, and you do the numbers work which is huge (MPG, RPM's etc). Your content is top freaking tier brother!

[@KrokemOutdoors]

Thanks Thor!

[@stevefoster61]

Dude... so good!

[@MuddyBeards4X4]

Looks awesome! I see we both have the stt pros now. Looking forward to hitting the trail once I get the S10 done🤟🏻

[@KrokemOutdoors]

Same, it’s been a while!

[@davidharris1767]

Awesome build and content !

[@jonathanpaulcookemusic]

Great video. Very interesting and informative.

[@Wonger559]

I seen the way you drive, you'll be going 60s. Guess you just need the justification still lol

[@bradcallander7789]

Looks great

[@betzaidavazquez5579]

🎉🎉Congratulations Edward !! Dusty is looking great, Cant wait to see you take him out and about. Thanks for sharing and all for all the info. 😊👊

[@KrokemOutdoors]

Thanks Betzaida, as always!

[@GadsdenJL]

Good stuff! At least wear the balljoints out first, but you should swap them aluminum knuckles. I run 37 sst pros on my 2djl. They do great in deep snow, but its hell driving on snow-covered roads that others have driven. It wants to drag you into deep snow or ruts pretty bad. Its even worse in my shorter wheelbase. Not the tires fault, just the way it goes with big wide tires in the snow. I'll be replacing the sst with another set of sst, outstanding tire. Cool video, thanks for sharing!

[@jwillpin1599]

Would love to hear how the stock steering is handling the 40s,

[@KrokemOutdoors]

It’s not bad, but could be better

[@goryeooverland4159]

Awesome setup Edward. It would be cool to run some trails together with our Goryeo Group.

[@KrokemOutdoors]

Hey, where are you based out of?

[@goryeooverland4159]

@@KrokemOutdoors Southern Cali and Reno.

[@angushoover8670]

The old saying comes to mind... Just because you can, doesn't mean you should... Time will tell... Good luck.

[@sierramantrvlnus]

Yay!

[@jim9win]

Right on looks good did it right 👍💰💵

[@robc5082]

Hell I ran 44" Boggers on D44's w/Chromo shafts. D-shaft u-joints were my fusible link.

[@ghernandez6457]

😬😬🫡

[@fish0n2]

Looks like a very capable Jeep now, looking forward to some cool rock crawling videos keep up the good work

[@jthor8373]

40s really are the new 33s especially on the JL and JT. Very little work needed to fit those and that's what I love about it.

[@lol123321123321]

40s are the new 35s. 25 years ago lifting and modifying your rig to fit 35s on a 15" rim was HUGE. Now a days you can buy a vehicle off the dealership floor with factory 37s.

[@OFFTHEGRIND]

REALLY excited to see a Tahuya run with you guys! One of my favorite places ever!

[@DaLife888]

Love the build… BTW, what brand roof rack you have in the JL. Thanks.

[@jeffmnacra5336]

What was the bill for the full modification? Looks amazing..

[@1000186ful]

I run cooper evolution 35" on my 79 jeep j10 with 6inch soa lift

[@robormiston2841]

I grew up in Silverdale where Northridge is. I used to ride up the ditch in front of his shop befor it was there 30 years ago on my dirt bike.

[@mikehunt-ew3pm]

I ran rock crawler 10 years ago... great suspension great flex, might even need limit straps or the coils will come loose

[@ken-ul7kf]

Hey buddy I have a 97 Dodge ram 1500,2wd with a Dana 44,my question is can I run 38 inch tires on them ,it's my daily driver??

[@dirtsailoroff-road5580]

Was all that work like 20k? Has to be.

[@othoapproto9603]

any video that put's in music filler when there still working is more interested in entertainment that education, Or they don't know what there doing.

[@MeanOneMeanOne]

Thanks for sharing and congrats! Beautiful build Sir! You're officially "big time" now brother. This comment will probably be received negatively but don't forget about the little guys......it's what made your channel great.

[@KrokemOutdoors]

Absolutely brother.👊

[@MeanOneMeanOne]

@@KrokemOutdoors I used to watch LLOD and some of his builds were way outside of the "average dude's" budget....... Please don't forget us little guys brother 🙏 Much Love!

[@Rubicon14]

That’s badass!!!

[@bobw9297]

Big tires / Big troubles

[@othoapproto9603]

OMG the contradiction aon 40's in the community is frustrating.

[@Mike-n-Murf]

What bumpers are you running?

[@pitpit860]

What your grandfather tells you about IWo Jima or Pearl Harbour???

[@Rob.on.a.carphone]

My Coopers replaced all of my Maxxis tires!

[@lowrangelee]

Yep. Got 40s on my bone stock 2021 jlur 44s. Turbo 2.0 and it annihilates them.

[@Mike_E_44]

How do those 40s do with the stock steering? Will you be adding hydro assist? Really nice rig you have there!!

[@KrokemOutdoors]

Some steering improvement modifications are on the list. For now, on easygoing trails it’s fine

[@pauljohnson7486]

what size rims and brand and model of the wheel?

[@scotthrncirik9091]

Looking great! Can’t wait to get back out your way and hit some more difficult trails! Keep it up!

[@KrokemOutdoors]

Let’s go!

[@brianbirc]

40'S ON A LITTLE JEEP? HOPE YOU HAVE SOME GEARS .

[@Overland_ATL]

It looks so Good! Tim can we stuff 40’s on my Rebel 🤣

[@timlund1709]

Yes, we can..... 😉

[@iamnoone5248]

On my old JK, I had 40s and stock axles. Truss and guss. Stock axle shafts and 5.13 gears. Been through Rubicon and Fordyce. It's all about the driver. Don't hop that's all. That's how sht breaks. Just crawl slowly and you'll b fine

[@DarrylCox-m6x]

How do you like the 5.13s with the ecodiesel and 40s? Im stuck between 4.88 and 5.13

[@camaroboi13]

I think that’s too deep honestly. I’m on 37s with stock 3.73s, I really wanted to go 40s but didn’t see this video in time lol. Had I gone 40s, I would have stuck with 4.56s. I also put 24k miles a year on mine though and lots of highway miles.

[@FieldWorxoverlandadventures]

You made the right choice with Rockrawler suspension, I feel their suspension is the best on the market for jeeps, I’ve owned 14 jeeps and always used rock crawler, just received my new 2023 392 and my parts came in last week from Rockrawler 4 1/2 inch lift very similar to yours, I have a set of 37 inch tires and a set of BFG 39 1350s I’m going to test both out and see what I like best, I like the way you have set up your jeep you’ve used good quality components, and you should have good luck with those tires, i’m considering those same wheels I’m just concerned about the legality of running bead locks here in Northern California on the road, I would think if an officer knows it’s a beedlock and pulls you over and you’re out of town what would happen? Could they stop you from driving? did you install flip kit for your drag link? thanks for the video!!! you do a good job with these!!👍

[@imforealz8617]

Oh no…. Bro…. You could have sold those axles, got some ultimate 60s and had free spin hubs, stronger, housings, stronger axles, bigger, brakes, larger bolt pattern, better unsprung weight…. For like an extra 3-4k. I wish you the best of luck, dude, but something tells me you’ll be back in the shop for a front bent housing.

[@roncua6900]

😮 did you upgrade the driveshaft ? And would it be your next mod ?

[@KrokemOutdoors]

Not yet, but it is high on the list 👍

[@reptilewizz]

I have a similar setup 40 inch cooper pros with 4 link 4.5inch teraflex lift kit. just need to cut my rear ponch seems more. And I’ll be good to go! stock Dana 44s lmaoooo im scared so I take it easy! need to truss them asap!!!

[@kyletitus205]

Looking for insight on a jku with a 3in terraflex and 4.56 Yukon gears going from 35s to 37s. I know the difference isn't much but want to inquire about mpg and if it's safe with the stock axels.

[@brianegeberg8497]

Sure can but when you forget that "nice lite driving" those little 44's will break if not the tiny pinion when you regear. I would recommend 60s.......

[@KrokemOutdoors]

Will find out and report back

[@brianegeberg8497]

@@KrokemOutdoors You certainly will I'm sure! Keep the rubber side down! Had 5 Jeeps under my belt over the years, now run a 3/4 ton QC 4 WD diesel for my camp rig.. sturdy and simple.

[@KrokemOutdoors]

@@brianegeberg8497 no guarantees

[@vincentmamotos9937]

Small pinion police. I've talked to many shop owners and engineers. The ring and pinion sizes on this m210/m220 advantek are so advanced and so much beefier than when the whole "breaking pinions" started happening around the JK's lifespan. Theyve regeard thousands of these new advantek axles and put 40s.Theyve yet to see ring and pinion break. the ring and pinion IS NOT tiny on these 3rd gen dana 44s.

[@UnloadedRex]

17!?! My Tacoma is only on 32s w/ a 3 inch lift and steel bumpers and with winter blend I’m all the way down to 15.3 😅

[@noepascual3610]

Awesome content! Thanks for sharing. Did you lose turning radius after adding the tires? I tried going for 38s with stock axles and couldn’t do a full turn without rubbing the frame even with spacers on.

[@workinghands1805]

Probably a weird question. But do you have a video of your ink? I see what looks to be a landscape on your left forearm. 👍🏼

[@keniferusxj7047]

Except for the knuckles coming out of the ball joint with 40’s

[@KrokemOutdoors]

Knuckles and ball joint upgrades are on the priority list

[@Rubicon14]

I was told flat diff covers are bad for gear fluid circulation is that true?

[@danielbadiang3817]

Wow …Jeep looks Killer 🤙🏾and the shop guys are very cool and informative for the build can’t wait too see it in action…Aloha 🤙🏾

[@larrygoodsell9273]

Waiting for my 23 JLUR to be delivered, stock 33's will be fine. Damn you !! haha

[@Taz_and_Roami]

Watching your videos for the first time and great video I'm in washington as well hope to see you on the trail. I have 2 jeeps 1 on 40's an my wifes on 37's.

[@thejohnlin]

Boy… good luck to you. If you going this deep, may consider DIY. That looks like a ton of money!

[@dudleybaggerman9574]

Boy's listenup , back in the early 80s i had 44in. Monster Mudders from Dick Cepek on my 72 ford highboy with a closed nuckle 44 HD with Stock axles and a true trac in front ! I was in the Firewood buisness and only 1 time i broke a long side front axle with a Cord of Oak loaded on , and i made the mistake of backing up a hill due to easy loading of wood ! I had to backup about ten feet to turn around and POP !! Other than that The Rubicon trail or 3ft of snow Never bothered the 44 , But i wasn't hamming the gas peddle all the time and that makes a huge difference

[@mikes.9755]

Thanks gramps. The problem is the new Jeep Dana 44s are not the old schools 44. The only similarity is the name.

[@dudleybaggerman9574]

@@mikes.9755 very Disrespectful words calling me Gramps and i think ur Wrong , these new 44 should be in ur own Words better than the old ones !! So Smart mouth young Punk do ur home work

[@mikes.9755]

@@dudleybaggerman9574 lighten up Francis. It’s called a joke when your first comment on the video starts with “ Boys listen up”. 😂😂😂. Secondly you have no idea how much home work I’ve done and third you have no idea how young I am. But you are Ina roll and also struggled with reading comprehension thinking “ in my words” I sad the current D44 offered even compare to the old school D44s. When I was a kid I was running Waggoner Dana 44s and Scout Dana 44s so put that in your old man pipe Gramps. 😉

[@dudleybaggerman9574]

@@mikes.9755 maybe i should have started out Stupid person , that would have fit u better ,

[@dudleybaggerman9574]

@@mikes.9755 boy u are Disrespectful

[@underscr0e]

I snapped my dana60 axles a few times with 40” tires the locker was probably to blame though.

[@markperritte]

What did you do on your drive shafts

[@KrokemOutdoors]

Rubicon drive shafts for the time being, but an upgrade is on the horizon once budget allows

[@TheRightLine]

Just found you on Northridge 4x4, Tim is pretty cool. You're jeep looks great!!

[@KrokemOutdoors]

thank you!

[@EigerSummitOffroad]

40 inch tires. Rutting out and ruining trails one rotation at a time.

[@godsbackcountryoverland]

Nice Jeep Edward should work out well for you. God Bless

[@jinoh7418]

I'm considering 40s on my ecodiesel, currently on 37s with metalcloak 3.5".

[@KrokemOutdoors]

get those chromoly axles and re-gear if you can

[@jinoh7418]

@KrokemOutdoors you don't think trussing the axles and Cs would help? I figure 4.56 would be the closest gear ratio for 40s.

[@lyzadavis543]

Good luck with that if it's going to see dirt use...the new axle assemblies are garbage

[@kakanator]

so you put such a big tire you cant even hit the gas pedal? make it make sense plz

[@KrokemOutdoors]

Of course you can hit the gas pedal, but you gotta be mindful when driving on certain trails. Highway/passing speeds are not an issue.

[@chrismc.893]

You can, but should you?

[@davidharris1767]

Nice build. Mod in stages, Take it easy on the skinny pedal. Great channel.

[@sc77]

Looks like about a $15k shop bill

[@KrokemOutdoors]

Definitely wasn’t cheap!

[@JuanPerez-vt2ti]

Whats the cost on this set up?

[@MrSrtman18]

Learn to do your own work.

[@alexmartinez-rg7ht]

What rim’s are those

[@TheRamon0007]

GREAT VIDEO WHEN YOU GO TO TAHUYA YOU LET ME KNOW...

[@vincentmamotos9937]

did you get a flipped drag link? 4.5 lift and you're getting into that territory

[@galfridusarturus6403]

Beast!

[@billj503]

COST ? Stock to 40s all in minus vehicle?

[@ludviglyberth257]

Yes 👏👍🤩

[@phillipcraddock8248]

The humans that do this kind of work are AMAZEING,