HowTo: 2006-2010 M35x Transfer Case Replacement

Forum for Infiniti M35 and M45, and Nissan Fuga owners.
midnightclub619
Posts: 220
Joined: Fri Apr 18, 2014 9:51 pm
Car: 2007 M35x
Location: San Diego, CA

HowTo: 2006-2010 M35x Transfer Case Replacement

Postby midnightclub619 » Mon May 01, 2017 10:03 pm

I went ahead and replaced my transfer case because I thought I was hearing a rattle from inside the transfer case which is attached to the Transmission. Unfortunately, this wasn't the reason for the rattle I was hearing but now I have a transfer case with much lower mileage than my current transfer case with 100k mi on it.

I pretty much followed the FSM on this but was able to remove the transfer case without removing the front propeller shaft and right catalytic converter. You can remove the right catalytic converter if you want but I found it not critical to replace the transfer case. Here are the FSM steps with some pics I took to do the job with socket #'s. Hope this helps

Tools:
3/8 socket wrench
3/8 flex head socket wrench
3/8 10 inch extension
10mm
12mm
14mm (regular & deep socket)
17mm (regular & deep socket)
17mm open/closed ended wrench
breaker bar (my preferred choice)
impact wrench (up to the user, I ended up stripping a bolt on the exhaust and spent an extra 4 hours trying to PB blast that thing to remove it so I didn't use it again)


TRANSFER ASSEMBLY PFP:33100
Removal and Installation NDS000E4
REMOVAL
1. Remove exhaust front tube with power tool. Refer to EX-3, "EXHAUST SYSTEM" .
2. Remove front and rear propeller shaft. Refer to PR-4, "FRONT PROPELLER SHAFT" and PR-6, "REAR
PROPELLER SHAFT
" .
3. Disconnect transfer assembly harness connector and separate harness from transfer assembly.
4. Remove air breather hose. Refer to TF-43, "AIR BREATHER HOSE" .
5. Remove control rod. Refer to AT-226, "Control Rod Removal and Installation" .
6. Support transfer assembly and transmission assembly with a jack.
7. Remove rear engine mounting member and engine mounting insulator with power tool. Refer to EM-114,
"ENGINE ASSEMBLY"
.
8. Lower jack to the position where the top transfer mounting bolts
can be removed.
9. Remove transfer mounting bolts with power tool and separate
transfer from transmission.

CAUTION:
Secure transfer assembly and transmission assembly to a
jack.

Prior to removing the y-pipe there are two pseudo mounts. All they are are just two mounts holding nothing but I guess to protect if there were to fall from there welds (guessing on this). sorry I didn't take any pics of these but they are really obvious when your down there.


1. These bolts were rusted really bad so be cautious with using an impact wrench. You'll be removing the y-pipe so there are 3 pairs of 14mm bolts to remove. I only took pics of the front left and right locations. You can easily see the rear pair of bolts to remove when your down there

Image

Image

2. I didn't remove the front propeler shaft because I didn't want to hassle with it which worked for me. It was a little tricky when reinstalling but it is doable with the installation process.

Image

sorry I don't have a pic of both the locations of the rear propeller bolt locations but those are also obvious while your down there but here is a pic of the bolts closest to the transfer case

Image

you'll want to use a 17mm socket and 17mm wrench to remove all 8 bolts (front and rear location). careful not to drop the propeller or damage it

here is a pic of the rear location of the propeller shaft removed

Transfer Case pic

Image

Rear Shaft pic

Image

3. Remove the the wiring harness. It has a latch on it you need to squeeze to pop it off

Image

4. Remove the breather hose

Image

5. Remove the bolt from the control rod. I think its a 12mm. reinstalling you'll want to use the specified torque mentioned in the FSM
AWD MODELS
1. Loosen nut (2) of bracket (1).
2. Place PNP switch and selector lever in “P” position.
3. While pressing lower lever (3) toward rear of vehicle (in “P” position
direction), tighten nut (2) to specified torque.
Refer to AT-227, "CONTROL ROD COMPONENTS (AWD
MODELS)" .

Image

6. Support transfer assembly and transmission assembly with a jack.

7. Remove the rear engine mounts. I think they were 14mm bolts. I used a breaker bar for these...didn't want to risk stripping anymore bolts

Image


I took pics of the view of the transfer case from the rear facing forward but my phone froze up and i didn't realize it didn't save the pics but here is a pic of the case removed showing the bolt locations

Image


there's a total of 10 bolts to remove. 4 different combination lengths. for the most part I was able to remove the bolts somewhat easy except for those bolts that were going from the transmission to the transfer case. but with some creativity they can be removed with ease and muscle.

Here is the pic from the FSM with the bolt locations

Image

When re-installing make sure to use the FSM specified torque 27 ft-lb

Re-install in reverse order.

Hope this helps. good luck


User avatar
Ilya
Moderator
Posts: 9031
Joined: Fri Apr 23, 2010 11:20 pm
Car: 2011 M56x but I spend a lot of time on my 2015 Kawasaki Vulcan S. Former owner of a 2007 M35x. Also take care of my wife's 2016 QX60.
Location: Albany, NY
Contact:

Re: 2007 M35x Transfer Case replacement

Postby Ilya » Tue May 02, 2017 6:18 am

Great work sir! Adding this to the FAQ.

steve_c
Posts: 258
Joined: Fri Jun 25, 2010 7:29 am
Car: 06 M35x
Location: Northeast USA

Re: HowTo: 2006-2010 M35x Transfer Case Replacement

Postby steve_c » Tue May 02, 2017 8:27 am

Wow....
Very well done!
A gold Star write up!

midnightclub619
Posts: 220
Joined: Fri Apr 18, 2014 9:51 pm
Car: 2007 M35x
Location: San Diego, CA

Re: HowTo: 2006-2010 M35x Transfer Case Replacement

Postby midnightclub619 » Tue May 02, 2017 6:53 pm

Thanks guys!

EdBwoy
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Location: St. Louis Metro East - IL
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Re: HowTo: 2006-2010 M35x Transfer Case Replacement

Postby EdBwoy » Tue May 02, 2017 7:18 pm

I ended up stripping a bolt on the exhaust and spent an extra 4 hours trying to PB blast that thing to remove it so I didn't use it again
These bolts were rusted really bad so be cautious with using an impact wrench.
I started reading and thought, uh oh, there he goes with his stuck bolts again. :gapteeth:
Good job on the write up man.

midnightclub619
Posts: 220
Joined: Fri Apr 18, 2014 9:51 pm
Car: 2007 M35x
Location: San Diego, CA

Re: HowTo: 2006-2010 M35x Transfer Case Replacement

Postby midnightclub619 » Tue May 02, 2017 7:42 pm

hahaha. I know! After that I said no more impact wrench on these bolts lol. used breaker bar for the rest of the bolts with no problems :biggrin:

User avatar
Ilya
Moderator
Posts: 9031
Joined: Fri Apr 23, 2010 11:20 pm
Car: 2011 M56x but I spend a lot of time on my 2015 Kawasaki Vulcan S. Former owner of a 2007 M35x. Also take care of my wife's 2016 QX60.
Location: Albany, NY
Contact:

Re: HowTo: 2006-2010 M35x Transfer Case Replacement

Postby Ilya » Tue May 02, 2017 9:23 pm

EdBwoy wrote:
I ended up stripping a bolt on the exhaust and spent an extra 4 hours trying to PB blast that thing to remove it so I didn't use it again
These bolts were rusted really bad so be cautious with using an impact wrench.
I started reading and thought, uh oh, there he goes with his stuck bolts again. :gapteeth:
Good job on the write up man.
hahaha


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