GX - 1st Gen (2004-2009) Discussion topics related to the 2003 -2009 GX470 models

How to Change Front & Rear Differential Gear oil on GX ( Tutorial )

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Old 01-16-18, 08:57 PM
  #106  
tonyka
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Hey mann777 - in your write up, you said "I used for the Front Mobil 1 and for the Rear Toyota OEM." Why did you decide to go with Mobil1 (75w) in the front and Toyota OEM (85w) in the rear? Assuming you have a reason for this, otherwise you would've just used the same for front/rear.
Old 01-18-18, 05:35 AM
  #107  
burny
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I always use the Mobil 1 for all of it. He may have just had some left over he wanted to use
Old 01-26-18, 08:15 AM
  #108  
gxman1
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Originally Posted by burny
I always use the Mobil 1 for all of it. He may have just had some left over he wanted to use
+1 same here did it twice and no issues.
Old 04-10-18, 10:45 AM
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oardila99
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Just completed this job. Thanks for the post and for the awesome PDF!


OA
Old 07-06-18, 10:37 PM
  #110  
David306
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I went online to the Toyota TIS - Techinfo Toyota and downloaded the chassis maint. info--hope it's helpful.
Attached Files
File Type: pdf
GX470 Chassis Maint.pdf (550.5 KB, 293 views)
Old 07-06-18, 11:52 PM
  #111  
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Here's a DIY Vlog https://www.clublexus.com/forums/gx-...ase-flush.html
Old 09-21-18, 11:04 AM
  #112  
gebo
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I'm not advocating any particular Gear Oil as there may be other brands that have this same option. But I must add, it was really nice and convenient and clean to use the new Amsoil bags of gear oil. Check them out. LIke I said, there may be other companies doing the same thing,
Old 10-19-18, 02:04 AM
  #113  
clubcaner
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Thanks again Mann,your the man.
Old 04-08-19, 05:22 AM
  #114  
ckm2000
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Default Changed Differential Oil

Mann,

Just curious why you used 2 different oils for Front and Rear Differentials? Your helpful guide has them both as the same gear oil. Also, did you buy your plugs and crush gaskets from the dealership? Thanks for sharing, very helpful. I'm planning on doing mine soon. Chris M.
Old 04-10-19, 01:02 PM
  #115  
vwynn
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some people like coffee in the morning and tea at night.
Old 05-20-19, 10:51 AM
  #116  
bludragoon
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Originally Posted by burny
$2 to $3 each. Might want to replace the bolts too while you are at it. The front has the hex fittings so be careful not to strip them. Any Toyota dealership usually has the plugs and definitely the crush washers on hand. 12157-10010 are washers for rear fill and drain. Also fits front fill plug. front drain is 90430-24003 big ole copper washer. Transfer case uses 90430-18008 for both drain and fill. If you can change your engine oil, you can definitely do this job. Get the little quart bottle pump at an autozone and it's back where differential oil is.
Hey Mann, can we get this info on the first post? I think it would be helpful to everyone coming here to do this service. Here is a photo of the entire 6 washer kit I found on ebay as well, $12.52 for the lot shipped.
Old 06-08-19, 08:21 PM
  #117  
bludragoon
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Did this service today. Used the 6 crush washers above. Used about 5.5 qts of 75w-90. I wanted to share a tech that you folks with fluid transfer pump grief may find useful. It's the highly technological and sophisticated "tube"



Its 1/2" OD - 3/8" ID. it fits securely over the gear oil caps and allows you to invert the container to dispense every last drop without spills. Whole service took about 3 hrs and a couple beers. She needed it, for sure. Unknown if rear diff was ever changed. Front and transfer looked a little better. All were well.. "tanned."
Old 02-18-20, 08:13 AM
  #118  
kamlung
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just an update. for the transfer case gaskets there is an updated part #:.

90430-18008

has been replaced by:

90430-A0003
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Old 06-17-20, 05:56 AM
  #119  
glenn2623
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2007 GX, 91K miles, fill and drain bolts look pristine on the rear and transfer case.

Going to change out the fluids this weekend I will not be be using ramps or jack stands . Wearing xl~xxl shirts these days. On a 4Runner change I found dropping the spare gave me ample room to fill the rear differential. From a search on this thread it seems this has not been addressed so no need to drop the spare? Transfer case looks like I will have good enough access.

Under the truck for the front I'm not able to look straight up without a near nose plant on the skid plate. I'm fairly sure I can remove the skid plate. It will essentially be a blind removal but kind of doubt getting it back on is doable. I can't tell once off whether I will have the room to do the job. Go for it or punt the front to the shop?
Old 06-17-20, 11:52 AM
  #120  
ALAN553
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Just be careful with front diff bolts....they tend to rust and take a large hex...maybe 10mm...soak it and give it a hit with a hammer


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