DIY: Whiteline rear differential bushings

YzGyz

Adding my quick video to this old DIY rear differential bushing and Finned NISMO cover swap. The movie is a little Blair Which but together with the instructions above, you get a really good idea of what and how to do it.
Job was not really hard. I would say it's a 4/10. Swapping the transmission and to swap the clutch csc is a 9/10.

It took me an estimated 5 hrs as I was making the video, working alone for the most part.

Tools needed
-SAFETY GLASSES!!! For the love of Jeebus have safety glasses. That rear bushing sprays some nasty junk when you drill and cut it. I had liquid and rubber stuff everywhere!!
-socket set, I used a few 1/2'', 3/8" exstensions, breaker bar, cheater bar (I used the handle of my other floor jack), wobble adapter, 12mm, 14mm, 17mm, pliers, screw driver, bottle jack, cutting tool, drill with spade bit as the screw type broke on me, hammer, sledge hammer (I used a 20lb dumbbell to knock the old bushing of the diff after flipping it over), probably missing a few more tools.
-Mat to lay on or creeper
-jack stand, jack, chocks
-something to ties things with
-pry BAR
-hex keys to break open the fill and drain plug

1-9
https://www.youtube.com/watch?v=AAtgvAYw-8Q
2-9
https://www.youtube.com/watch?v=sT8geSsAGes
3-9
https://www.youtube.com/watch?v=N5kw2IDwgsg
4-9
https://www.youtube.com/watch?v=PQyAkW70_Ng
5-9
https://www.youtube.com/watch?v=R4AZ38mUn8k
6-9
https://www.youtube.com/watch?v=kMyx8_WW-6Y
7-9
https://www.youtube.com/watch?v=RLuQFl2mu4c
8-9
https://www.youtube.com/watch?v=UNgYlGMGg6A
9-9
https://www.youtube.com/watch?v=FlhoTCILr8s

conmam

Here is a very simple tool that I fabricated ( Took me 15 minutes to do a good fabrication job) in order to drive that stupid vent pipe into the Nismo diff cover. This tool works every time rather that getting my head beat out banging the breather pipe in while trying to align it.

Simply take your 3/8 inch drive 9mm socket and carefully cut out the part shown in order to accommodate the part of the pipe sticking up. Drive the breather pipe in nice and straight.....

YzGyz

I did not want to sacrifice a tool since I'm only going to do it once. That defiantly works better.

YzGyz

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YzGyz

conmam

It's all right. My 9mm deep sat around for the past 20 years untouched. Never had a need for a 9mm so might as well have some use of out it after all.

Jayhovah

I took your idea but like some others, did not want to sacrifice a socket... I found this little pipe coupling in the plumbing department of the hardware store... it was a couple of bucks.

I drilled a hole through it so I could flip it 180 degrees to make sure I was tapping the vent tube in evenly. Worked great, thanks for the idea.

Attached Images

IMG_20170111_224918.jpg (55.1 KB, 207 views)

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hOOnZ

I know this is an old thread but wanted to bump it and share my experience.
Thanks OP for posting, and others for comments as well.

Noticed fluid residue on the diff cover so decided to tackle. Purchased it on Amazon for $95 and got it in 2 days. Compared to Z1 or other vendors, total price was cheapest and shipping was quickest.
Just got it done over the weekend with a friend. Having a lift made everything much easier of course, but it is not critical for clearance.

Few installation notes:
- We marked all 3 flanges and axles/ds to get it back to where it was. Worth noting that I had swapped a vlsd into my base where you can't really put it in exactly as it was to original, but I had no issues before this install and wanted to keep it that way.
- Removal: used a bushing puller for the fronts, and drill + saw for the subframe mount. There is a metallic piece that comes out with the rubber bushing, but don't confuse this with the steel plate that needs to come out.
- install was easy peasy, used included grease and pressed in by hand mostly, the subframe bushing pulls in when installing bolt to diff.
- followed the included instructions to dispose of the top plates (iirc) on front mounts.
- It was the first time doing this job for both of us, but my friend is an Infiniti master tech so he knew his way around the car and his tools. Took us about 2hrs total. Perhaps worth noting that rear braces and exhaust were removed/installed not too long ago so we had nothing seized.

Impressions:
Got rid of the thud noise under hard shifting - no matter how hard I shift there is zero noise.
On/Off throttle moments seem tighter, drivetrain slop has definitely improved - makes me want to go further with trans mount.
Haven't noticed any change in NVH - perhaps the exhaust sounds slightly louder, but I reused the exhaust gaskets so will be checking for leaks next time.
Definitely recommend this one, especially if you're capable with DIYs. Bang for buck is very high on this one.