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Discussion Starter #1 (Edited)
O.K. there has been a lot of were can i get gears posts.
So I thought I would gather info from different threads and posts and put it on one thread.
Thanks to all who contribute and make TitanTalk.com such a great source of information.

My Personal Findings
I have found the 2004-2007 Titan/Dana 44 to be very reliable once the stock carrier is replaced.
In my case with a TrueTrac LSD, this eliminates the spider gear weak link in the stock carrier.
I have not experienced any broken internal parts nor axle seal leaks.
I play off road once in a while and roll 37" MT's with 3" wheel adapters to fill in the glass bedsides.
The bearings are still rolling with no sign of failing.
On another note, the front bearing are fine as well.

It is also very important to make sure the axle vent is in good order, some have experienced axle seal leaks.
Due to the axle not venting properly and added pressure blowing out the end seals.


WHAT GEAR RATIO DO IT GET FOR BIG TIRES

I had 2.94's with 35's when I found out about Hoopers, I went with 3.73's
It was better but was not impressed :huh: I stepped up to 37's and got 4.56's It was good :teethmast I was content. Now the difference I see is guys hung up on higher RPM'S :huh: Friggin LET IT GO! when I step on the gas I want my truck to respond quickly from 0-60 & 60-90 and respond quickly if I need to pass on the freeway. Titan's by nature are not gonna get great gas mileage, So here in my personal recommendation. With 35's especially light AT's go with 3.73's minimum, PERIOD! no 3.36 $hit! 3.36's are for puzzy's! If you have a heavier 35" MT or want maximum performance go with 4.11's you will be doing a little more RPM on the freeway but so Fuggin what! that is what 5th gear is for! If your afraid of a little more RPM pull back to 65 MPH and your cool ( and no tickets ) :) now for 37's :huh: the only 37" tire I would run 4.11's with are the little BFG petite AT's :rofl: BIG FUGGIN HEAVY 37's need 4.56's PERIOD! :ftard: :bangit:

Right now with big heavy half worn 37" MT's I'm at [email protected] [email protected] [email protected] and average 288 miles per tank 11.52 MPG, and I'm always on the gas!

The only way to get better gas mileage from your Titan is to feather the throttle, easy acceleration and anticipation. I tried and only lasted 1 week...........:teethmast



The two options

At this time to change the gear ratio in the rear diff of a Titan. ( there is nothing for the front diff at this time, Superior may have something for the 4WD soon? )

Hey 4WD guys, gears for the front!
http://www.titantalk.com/forums/tit...n-drivetrain/114260-attention-4wd-titans.html

Hoopers Rear End Exchange

This is for those who live in or near So. Cal.
They modify the carrier (usually a TrueTrac upgrade ) to accept Dana 44HD gear sets.

http://www.titantalk.com/forums/titan-engine-transmission-drivetrain/61691-whats-deal-gears.html

http://www.titantalk.com/forums/tit...drivetrain/64001-hoopers-fact-myth-gears.html

http://www.titantalk.com/forums/tit...ruetrac-mag-hytech-diff-cover-3-73-gears.html

http://www.titantalk.com/forums/tit...train/84896-getting-4-56-gears-next-week.html

http://www.titantalk.com/forums/tit...-44-rear-axle-whats-difference-other-44s.html


Also Jetboatjeff made a post detailing how to modify the carrier for Dana 44HD gears. With the info in this post any competent diff shop could perform this mod/gear swap. Thanks Jeff :thumbsup:

http://www.titantalk.com/forums/titan-engine-transmission-drivetrain/103363-44hd-gear-swap.html

These are your ratio options with this mod.

http://www.justdifferentials.com/category-s/1904.htm

Superior Gear

Superior now makes 4.10 & 4.56 ratios that install without modding the carrier but with a spacer
I don't particularly like the spacer thing but no one has posted a failure.

http://www.titantalk.com/forums/tit...vetrain/93666-rugged-rocks-concept-gears.html

http://www.titantalk.com/forums/titan-engine-transmission-drivetrain/97571-gears-out.html

http://www.titantalk.com/forums/titan-engine-transmission-drivetrain/98545-new-gears.html

Nissan Titan - Differential Gears | Rugged Rocks Off Road | Nissan 4x4 Parts and Accessories

Richmond Gear
Richmond Gear now offers 3.73 & 4.10 gears for the Nissan Titan.

http://www.richmondgear.com/01hotnews.html

NEW Gear Sets for Nissan Titan

Liberty, S.C. - Richmond Gear announces the introduction of gears for the 2008 and up Nissan Titan. We are offering two ratios, 3.73 and 4.10 Part numbers 49-0180-1 and 69-0481-1 respectively. Kits for these gears are also available in full and half kits. Part number 83-1085-1 is the full kit and 83-1085-B is the half kit.

A important note for either of these routes.

You will also need to acquire a pinion flange from a 04-05 (29 spline)the 06's and up are 24 spline and will not fit the 44HD pinion.
http://ruggedrocksoffroad.com/nissan-m226-differential-29-spline-yoke-p-35931.html



Looks like we all have 32 Splines

http://www.titantalk.com/forums/tit...35-08-titans-do-not-have-35-spline-axles.html

Modified Dana 60
With 2004-2012 Titan axles housing ends & axles.


The next option is to replace the Titan/Dana 44 with a modified Dana 60.
You can cut the axle housing ends off any Titan/Dana 44 rear end and weld them onto a Dana 60 housing. The Titan 32 spline axles fit the Dana 60 32 spline carrier, the Titan housing ends house the tone ring sensors and the Titan axles have the tone rings. This will keep lights off the dash and keep the speedo working. You can have custom 35 spline axles made to use the Eaton Dana 60 TruTrac.


I called Nate and dude that guy is super helpful and completely explained it all to me.!!!

His shop will build a Dana 60 with the gears of your choice and a truetrac for the dana 60 that has the 35 splines. He builds it up and provides all the bolts/hardware needed for a complete swap in.

-the driveshaft mounts right up.
-you just remove your the bolts from your current axle holding the rear hub carrier, brakes and lines and simply mount it onto the dana 60 custom titan housing he builds by sliding the 35spline axles into the housing and into the dana60/truetrac. from there you bolt it all up. its a complete swap set he has.

He said its $1550 + shipping.

he also said he can put in any locker of your choice that he can get for the dana60 or any gear ratio you want.
he mentioned to me 3.54, 3.7X, and 4.10 just in talking to him.

SOoo...
pretty much he sells you a bolt in dana60 housing and axle tubes with custom flanges on the end to mount your axle end parts (hubs, brakes, lines, etc) to mate to the titan end components... with correct drive shaft flange with the gear ratio and locker of your choice....all bolt in.... ready to go.

-J
TT 915A385 - LIMITED SLIP,POSI,POSITRACTION,TRUE TRAC,TRUETRAC,DANA 60,DIFFERENTIAL,SPICER 60 - True-Trac limited slip for Dana Spicer 60 rear F/F with 35 spline axles. Fits 4.10 and down. The True Trac limited slip uses a worm-gear design to bias to

TT 915A386 - LIMITED SLIP,POSI,POSITRACTION,TRUE TRAC,TRUETRAC,DANA 60,DIFFERENTIAL,SPICER 60 - True-Trac limited slip for Dana Spicer 60 rear F/F with 35 spline axles. Fits 4.56 and up. The True Trac limited slip uses a worm-gear design to bias torq

ARIZONA DIFFERENTIAL

http://www.titantalk.com/forums/tit...146-arizona-differential-whole-enchilada.html

Arizona differential the whole enchilada

I wanted to find out just what Arizona Differential was all about.
I have read a few post but they were vague and not very specific.
So I gave them a call, and spoke with Nate himself.
Well here is all the poo.

Nate is very knowledgeable when it comes to the Nissan Titan Diff.
These are your options at Arizona Differential.

Option A: Carrier mod/gear swap for all the 04-07 models, this will allow the installation of any Dana 44 HD gear set.
At this time you would want to upgrade to a TrueTrac Limited Slip Differential. The stock carrier with spider gear is the weak link!
(This is the same mod done with Hoopers gear swap)

Option B: Modified Dana 60 with Titan/Dana 44 end's , bearings , tone rings & brakes.

This can be accomplished with any year Titan diff as the donor 04-10.

The 32 or 35 spline axles from a Titan/Dana 44 fit the 32 and 35 spline D60 carrier.But you really want to go with the 35 spline axles because EATON doesn't make a TrueTrac for the 32 spline D60 only the 35 spline. So for those who have 32 spline axles Arizona Differential can make you custom 35 spline axles and transfer the tone rings .

I found that they use Spicer components and sleeve the axle housing just in board of the spring perch to make it very strong.

Nate said they do have Dana 60 and Titan/Dana 44 cores, so they can make a diff. to your specs before hand and can be installed in one day.

And for us Desert Runners, Yes he can build a Titan/Dana 60 with a trussed housing.

The price point is roughly $1850.00 to $2800.00 depending on your specs.

Option C: They can also build you a Titan/Ford 9" with tone ring etc...

I know this has been a old debate, but Nate prefers the Dana 60 over the Ford 9"

Thank you Nate for your time,knowledge and Great solution's for the Titan community.

CL 8 2WD- Bobby
http://www.titantalk.com/forums/titan-general-discussion/99889-dana-60-install-az-differential.html
It was $2200 with the locker and gears and installed. There address is 2180 north west grand ave. phx. 85009. Trust me it is worth it I have 37" tires and I can slide around corners when ever I feel like it. Talk to Nate he is very good at what he does.
http://www.titantalk.com/forums/tit...cations/37064-need-opinions-dana-60-rear.html

http://www.titantalk.com/forums/titan-engine-transmission-drivetrain/78472-titan-dana-60-a.html

Currie Ford 9 Coming Soon / With Tone Rings

http://www.titantalk.com/forums/tit...92-currie-ent-titan-replacement-rear-end.html

http://currieenterprises2.reachlocal.net/cestore/default_4x4.aspx

http://currieenterprises2.reachlocal.net/cestore/categories4x4b.aspx?id=1371


2WD's Lose Cruise Control

It seems when you change the gear ratio on a 2WD you lose cruise control.
How ever the 4WD guys that have changed there gear ratio have retained cruise.
There is no documented solution as of yet.



Recalibrate Speedometer for larger tires

http://www.4wheelparts.com/Hypertec...=74&t_s=33&t_pt=6297&t_pl=2708&t_pn=HYP730104



Axle Vent Mod Link

http://www.titantalk.com/forums/titan-faq-howto-area/28334-axle-vent-issue-solution.html



DIY AXLE HOUSING SEALS & BEARINGS

http://www.stu-offroad.com/axle/d44/d44-1.htm

http://www.titantalk.com/forums/titan-faq-howto-area/123384-replacing-axle-seals-w-pics.html

Or

The seal is behind the bearing that is pressed on,the bearing needs to be pulled to get to the axle seal. And while yer at it,might as well do both sides :thumbsup:

Break the lug nuts loose before jacking up the truck.
Jack up the truck remove tires,remove brake calipers and rotor, drain the diff, loosen four nuts retaining axle.
Remove axle and wipe off gear fluid.
Take to a shop to have them R&R the bearings and seals.
(Always a good idea to have the parts and call a local shop in advance to arrange to have this done so things go as smoothly as possible )
Return and reinstall, refill diff with new gear fluid :thumbsup:







http://cgi.ebay.com/ebaymotors/NISS...3286Q2em7QQcategoryZ170141QQitemZ260510628822





Old man Hooper & John at J&S Gear said non synthetic gear oil was best for a LSD



Changing the Differential Fluid

http://www.handymanlyness.com/archives/auto/maintenance/differential/01/rear_gm.html


Helpful Links
What gear ratio do I need?

Differential Gear Ratio determines the number of times the drive shaft (or pinion) will rotate for each turn of the wheels (or ring gear). So if you have a 3.73:1 gear ratio the drive shaft turns 3.73 times for every turn of the wheel.

Gear ratio is calculated by dividing the number of teeth on the ring gear by the number of teeth on the pinion gear. The higher the number, the lower the ratio: a 5.29 gear has a lower ratio than a 4.10 gear. With a lower gear ratio the drive shaft (and thus the engine) turns more for each revolution of the wheel, delivering more power and torque to the wheel for any given speed. Lower ratios are generally desirable when going off-road. Higher ratios are better for freeway driving since they run at lower RPM’s and offer better fuel economy.

Changing tire size affects the final drive ratio. Switching from a 30" tire to a 35" tire changes the final drive ratio by about 17%. This may drop the engine out of its' "power band" and result in poor performance and fuel economy. To restore performance you must change the gear ratio to compensate for the change in tire size. If you originally had 3.07 gears you need a ratio that is approximately 17% lower, such as 3.55. If you want to increase off road performance you might want a 4.10 or lower ratio.

Recommended Engine RPM @ Highway Speed
4 cylinder: 2200 – 3200
V6 cylinder: 2000 – 3200
Small block: 1800 – 2800
Big block: 1800 - 2600
Diesel: 1600-2800
http://www.ringpinion.com/Calc_RPM.aspx

http://www.4wheelonline.com/superlift_tiresize.htm

http://www.mrt-wheels.com/gear ratio chartl.html

http://www.rmr-offroad.com/tech-tips/calculators.htm

http://www.truckinweb.com/tech/engine/0613tr_ford_f_150_gears/index.html

http://www.truckinweb.com/tech/engine/0808tr_re_gear_speedometer_calibration/index.html

http://differentials.com/technical-help/faqs

5-speed automatic w/OD
Specifications
Transmission gear ratio (1st) 3.83
Transmission gear ratio (2nd) 2.37
Transmission gear ratio (3rd) 1.52
Transmission gear ratio (4th) 1.00
Transmission gear ratio (5th) .83
Transmission gear ratio (reverse) 2.61
 

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Discussion Starter #3 (Edited)
Lasted 4 Years Driven Hard and Put Away Dirty

OK I have a new real world perspective of the Nissan Dana 44.
It has been 4 years since I changed to a 4.56 gear set rolling 37's.
Last Tuesday I stared hearing some noise coming from the rear end.
I took it to a diff shop to find the ring & pinion gears had a couple of teeth missing and the axles had some play. This shop did not like the way my gear set was set up and said it could have contributed to the failure. They also said it looked like the gear set had a sudden uneven load shock. Possibly from some firm hits off road being air born and the tires distributing a uneven load from each wheel upon landing. Any Hoo The entire rear end was rebuilt.
Also the passenger front hub assembly was showing signs of wear and I was asked if I wanted to have it replaced, I told him there are two new hub/bearing assemblies in the tool box and have at it. So the Front hub assemblies and rear bearings lasted 6 years and the 4.56 gear set lasted 4 years and possibly could have lasted longer if it was a set up issue when I had the axle housing disassembled sleeved and trussed 3 years ago.
So with everything taken into consideration I believe the Titan 44 held up pretty good considering the extreme service I put it though. Hey Lou! remember the poker run in Cal City :teethmast I am going to gently break the new parts in, work lots and pay off some debt and sell this good axle because the type of driving I do at times, rolling heavy a$$ tires I need......no want a stronger piece. Oh one last thing..............the axles seals never blew fluid :lol:

 

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Old setup was Hoopers huh, who did this rebuild for you?
 

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Discussion Starter #5

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Hope mine holds up, going the tru trac way this Friday with a complete rebuild. Just want it to last otherwise my T is going bye bye. :(
 

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Discussion Starter #7 (Edited)
Hope mine holds up, going the tru trac way this Friday with a complete rebuild. Just want it to last otherwise my T is going bye bye. :(
The TrueTrac will make all the difference in the world improving reliability and traction. Also the shops I have dealt with recommend a good non synthetic gear fluid for a LSD/TrueTrac. And as a side note, Guy's cant expect to throw heavy duty use at a piece rated for normal 1/2 Ton use and expect it to last forever, I have never owned a vehicle I didn't mod or drive spirited. If you use your Nissan in a heavy duty application like heavy duty towing,drag racing, off roading, rolling much larger heavier tires etc....some applicable parts must be upgraded. Its a fact of life, you must pay to play!
 

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Please edit out all the 35 spline axle stuff that is completely false. No more people need to waste thier money on a problem that doesnt exist.
 

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Re: Broken diff

anyone have a solution to replacing the broken lockers on a stock 2004 titan.
Dealer tells me its not possible to purchase parts for diff. They are asking for $$$$ to replace entire housing.
 

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Re: Broken diff

anyone have a solution to replacing the broken lockers on a stock 2004 titan.
Dealer tells me its not possible to purchase parts for diff. They are asking for $$$$ to replace entire housing.
Your options are a truetrac, arb locker, or new factory elocker, contact JTs Parts & Accessories, Justdifferentials.com or Nissan Parts, Nissan Truck Parts, Nissan Suspension Kits, 4x4 Parts | 4x4parts.com. If you need to replace the gears too, hit up Arizona Differential | Differentials Done Right!
 

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Just oredered 3.73 gears an tru track wondering how this will effect factory shift point and if it does what do i need to do to fix
 

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Discussion Starter #13
Please edit out all the 35 spline axle stuff that is completely false. No more people need to waste thier money on a problem that doesnt exist.
The 32 spline axles from a Titan/Dana 44 fit the 32 spline D60 carrier.But you really want to go with the 35 spline axles because EATON doesn't make a TrueTrac for the 32 spline D60 only the 35 spline. Arizona Differential can make you custom 35 spline axles and transfer the tone rings .
 

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Discussion Starter #14

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Could you make a video of you driving, like a hard take off, 20-80 etc? im about to do the gear swap and wanna know what im gonna get :rollingey
 

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Good info. There are even more options for the rear besides the M226 specific ratios, but here are some links to parts that are all M226 specific:
The rear axle is pretty small for the application, so good to see you've addressed some of these areas. here is a list of links to some of the parts we offer to fix your rearend:

Titan Rear Bearing Kit:
Nissan Titan Rear Master Install Kit M226

Titan wheel bearings and seals(04-07 use AKSET10, 08+ use AKSET80:
Nissan

Titan gears:
Nissan M226

Titan 4 pinion E-Locker:
Nissan Titan M226 32 Spline Electric Locker, New Stronger 4 Pinion Design!

Titan True Trac:
Nissan M226, 32 Spline, Eaton/Detroit Truetrac Limited-Slip Differential

ARB:
ARB Air Locker Nissan Titan Rear, 32 Spline
 

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After all the reading just wondering, if I change from my 2.94 to 3.54 ( I dont have any crazy tires like 37's, just a set of 24's with some low pros on them). What else would be needed since this seems to be a factory gear set. Sorry if this seems to be a stupid question but I could not find the answer to this at this time.
 

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Discussion Starter #18
After all the reading just wondering, if I change from my 2.94 to 3.54 ( I dont have any crazy tires like 37's, just a set of 24's with some low pros on them). What else would be needed since this seems to be a factory gear set. Sorry if this seems to be a stupid question but I could not find the answer to this at this time.
your speedometer will be off and will need calibration, i never did i use the GPS. Calculating with the stock tire size 265.70.18 32.61" tall , with the 2.94 1576 RPM with the 3.54 1897 RPM. the truck will drive much nicer with those heavy 24's , don't know if it's enough to lose cruse control???

https://www.ringpinion.com/calculators/Calc_RPM.aspx
 

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I've searched the forums and haven't found what I'm looking for, if someone could direct me to the right place I would be thankful. Sorry if I am just missing where to find the info, I try hard not to clutter up the forums with questions that have been asked 100 times. I ordered a Yukon Grizzly locker and it should be here today. I was wondering if anyone knows the specs for the Ring Gear and Caps torque values? Also the back lash, and pinion preload specs? I'm not doing a new ring and pinion, just swapping the stock carrier out for the Grizzly and reusing everything I can... I got a set of new Timken bearings for the Grizzly, I don't want to reuse those. I am hoping that I wont need to replace the axle seals and bearings as they are leak free right now... if they do leak after the install from removing the axles I will deal with it then, but I digress. If someone could direct me to the specs I need to know I appreciate it, and any other useful info that anyone might want to pass on. I have done some differential work in the past, but I am no expert by any means. Thanks in advance.

One more question, does this version of the Nissan D44 uses side adjusters instead of shims? Is that correct? Haven't popped off the cover yet as I'm still waiting for the Grizzly to arrive...
 

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After further searching on another forum, I think I may have found the info I am looking for if someone could confirm... sounds the same as for Jeep's JK version of the D44. I am coming up with 135 foot lbs. on the ring gear bolts and 80 foot lbs. on the caps, with a back lash setting of 6-10... Thanks.
 
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