Changing the Rear Differential Oil (2001) - Toyota Nation Forum : Toyota Car and Truck Forums
1st Generation (2001-2007) Forum dedicated to the discussion of 1st generation Toyota Highlanders.

 
LinkBack Thread Tools Display Modes
#1 Old 03-17-2011, 06:04 PM
Take off, eh!
 
Dante's Taco's Avatar
 
Join Date: Dec 2007
Location: Red Deer, Alberta
Posts: 1,430
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 53
Thanked 148 Times in 92 Posts
iTrader Score: 1 reviews
(Thread Starter)
Changing the Rear Differential Oil (2001)

Here is a write up on changing your own Rear Differential oil, with a few pictures. It is aimed at someone with very basic wrenching skills (but perhaps not a complete novice), so you veterans, please proof read for accuracy.

As always... some safety points first when working under a vehicle:
  • ALWAYS make sure vehicle is either level, or if on ramps, will not roll towards you if something fails with brakes or wheel chocks
  • engage E-brake
  • chock at least 2 wheels to prevent rolling
  • rubber gloves are nice
Regarding the question: "Do you need to do this on a lift?" - no, just like last weeks oil change, I did this in the garage (in Winter). No blocks this time.

here is the supply list:

Tools
- 10mm Hex-bit socket to remove Drain & Fill plugs
- Ratchet
- Extensions (I needed 2)
- Torque wrench
- Steel pick or wire brush to clean the mud out of the plugs prior to loosening
- May need a snipe or breaker bar to get the plugs loose (depending on how long since this was last done)

Misc
- Ramps (optional)
- Oil Pan
- Hand oil pump
- small plastic container to catch drips when filling
- Paper towels or rags
- Rubber gloves
- Wheel chocks

Consumables:
You will need about 0.9 litres of 75W90 Gear oil (brand of your choice - I used Amsoil Severe Gear full synthetic). I got 2 jugs.. just in case.
- and 2 plug washers - Toyota part # 12157-10010

Here we go (you can see my oil pump in the plastic bag):


First things first: Here is the Drain plug (do not loosen yet):



And here is the fill plug circled in purple (always loosen the fill plug first! - If you can't get it loose, but just drained out all the oil.. you're screwed)
Note this is on the passenger side of the differential, kind of tucked up back of the passenger axle side of the diff.



Did I mention it was still winter here? Here is my other 'Yota:



Here's another view from a bit farther back, and with flash turned on. As you can see, the axle has 4 wide points on the mounting flange. These can get in the way, making it impossible to get your socket + extension in place. If you find the geometry of the axle wrong, try backing up your Highlander ever so slightly, to hopefully get more clearance:



So, using our ratchet, extension (to clear the axle flange) & 10 mm hex head, we can break the fill plug loose. Just loosen it for now, no need to take it out just yet. You NEED to be sure you can get the fill plug loose BEFORE you drain the differential.



Now we can remove the fill plug. In both cases, they will probably be pretty tight, and need some 'juice' to break 'em loose:


Making sure you have your bucket in place, remove plug completely, and also remove fill plug to let air into diff & speed up the draining.



The drain plug has a big black magnet on it, which is designed to trap ferrous metallic fragments suspended in the oil. It is worth examining your plug to see how much of this material is on it. i.e. this is a reflection on what is going on in your gear-box. mine was pretty good - only a few iron filings on it:



After thoroughly cleaning up the drain plug, replace the crush washer. Be sure you accounted for the old one (it's not stuck to the drain hole or the plug, right?...). Hand tighten in place. It should *easily* turn in. If not, back up & try again to avoid cross-threading.



This is where we use a torque wrench to tighten to 36 ft-lb specification:



This is what it looks like once fully tightened. Crush washer is now flattened:



Now this part pretty much sucks - no way around it. Assemble your hand oil pump & place in 1 litre oil bottle:



Place other end of hose into fill hole:



..and then pump until oil begins to flow out of the fill hole like this (takes about 900 ml or 1 quart or 2 pints, whatever the hell those are):



Then torque down your fill plug & wipe up the mess. I needed to try various extensions to be able to reach a big torque wrench under the car & actually be able to ratchet it:



Clean up all plugs, account for all tools, wipe up oil pump & stow back in plastic bag. Remove wheel chocks. Take car out for a spin, do a few figure eights to ensure oil gets fully into differential. Some people will at this point remove fill plug & check level - I don't personally, as long as I know 900 ml went in. That's an advantage of buying an oil that has a graduated container.

Once again, enjoy bevvie of choice, knowing you saved *significant* $$.
My cost was under $20.00 for premium synthetic gear oil + OEM washers. The Dealership charges $89.00. You do the maths.

06 DC LB S45 4X4: Roll 'N Lock / Philips Xtremes / Cobra CB / AllPro IFS, tranny & T-Case skids,1.25 spacers, 10 pack leafs/ R. diff breather mod / fogs-on mod /Nitto Terra Grapplers 265/75/16 / Hakkapeliitta LT studded/ Timbrens / Fox CO + 2.0 resi x4 / YotaFab sliders / Yaesu FT2600
VA6TAC
Highlander LE 2001 (wife's)
Dante's Taco is offline  
The Following 7 Users Say Thank You to Dante's Taco For This Useful Post:
doppie (10-05-2013), JoeFoss1 (05-11-2012), mkvaughan (01-07-2014), SamBurrito (07-25-2013), shortlid (03-20-2011), TrailDust (03-17-2011), turver (06-22-2014)
Sponsored Links
Advertisement
 
#2 Old 03-17-2011, 06:51 PM
Official TN Member
 
Join Date: Jun 2010
Location: DFW
Posts: 564
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Thanks: 39
Thanked 67 Times in 61 Posts
iTrader Score: 0 reviews
Excellent and very informative post - thanks for taking the time to do the great pics and text. Much appreciated.
jabberwock is offline  
#3 Old 03-17-2011, 07:05 PM
03' HL Limited V6 175,xxx
 
Tydog07's Avatar
 
Join Date: Jun 2009
Location: Detroit, Michigan
Posts: 239
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 7 Times in 6 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by jabberwock View Post
Excellent and very informative post - thanks for taking the time to do the great pics and text. Much appreciated.
+1, I haven't seen one that nice in a while!

'03 Highlander V6 Limited 4WD, (0 to 175,548 Miles) SOLD (So sad to see it go! )

'02 Dodge Durango SLT (140,XXX Miles) Third Row Seating, Leather Interior
-Superchips 3815 Programmer, K&N FIPK CAI, NGK 2262 Plugs-
-BA S65 Speakers, Remote Start -
-General Grabber HTS Tires 265/70/R16-
Tydog07 is offline  
#4 Old 03-17-2011, 09:00 PM
Take off, eh!
 
Dante's Taco's Avatar
 
Join Date: Dec 2007
Location: Red Deer, Alberta
Posts: 1,430
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 53
Thanked 148 Times in 92 Posts
iTrader Score: 1 reviews
(Thread Starter)
You are welcome! I love to work on vehicles, and figure what the heck, bought a good 35 mm SLR, might as well incorporate the two hobbies

D

06 DC LB S45 4X4: Roll 'N Lock / Philips Xtremes / Cobra CB / AllPro IFS, tranny & T-Case skids,1.25 spacers, 10 pack leafs/ R. diff breather mod / fogs-on mod /Nitto Terra Grapplers 265/75/16 / Hakkapeliitta LT studded/ Timbrens / Fox CO + 2.0 resi x4 / YotaFab sliders / Yaesu FT2600
VA6TAC
Highlander LE 2001 (wife's)
Dante's Taco is offline  
#5 Old 03-17-2011, 09:19 PM
Official TN Member
 
Join Date: Jul 2009
Location: Louisville, KY
Posts: 260
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 6
Thanked 22 Times in 19 Posts
iTrader Score: 0 reviews
Amazing write-up. Well done!
teppista881 is offline  
#6 Old 03-17-2011, 11:46 PM
Do you feel lucky?
 
TrailDust's Avatar
 
Join Date: Mar 2008
Location: Kalifornication
Posts: 24,090
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 535 Post(s)
Thanks: 2,586
Thanked 4,824 Times in 3,364 Posts
iTrader Score: 1 reviews
Quote:
Originally Posted by Dante's Taco View Post
Here is a write up on changing your own Rear Differential oil, with a few pictures. It is aimed at someone with very basic wrenching skills (but perhaps not a complete novice), so you veterans, please proof read for accuracy.
Thank you yet again for another excellent write-up, which has already been added to the DIY sticky. The 1st Gen forum is benefiting very well from your effort, so much appreciation to you!

-------------------------


2008 Highlander Base 4WD
2002 Avalon XL
1987 Suzuki Samurai 4X4 - Treading where no Jeep can follow....
TrailDust is online now  
#7 Old 03-19-2011, 03:06 PM
New TN User
 
Join Date: Jun 2009
Location: NJ
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
iTrader Score: 0 reviews
Very nice write-up. You could use an IV bag from the drug store in place of the pump to put the oil in.
IBME is offline  
#8 Old 03-19-2011, 05:17 PM
Take off, eh!
 
Dante's Taco's Avatar
 
Join Date: Dec 2007
Location: Red Deer, Alberta
Posts: 1,430
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 53
Thanked 148 Times in 92 Posts
iTrader Score: 1 reviews
(Thread Starter)
^
Hi. Yes, I've also heard of using tubing from hardware stores + a funnel as well. (which might be cheaper & more readily available than.. IV bags)? I don't know about where you live, but (I'm a pharmacist actually) I'd be pretty surprised if they just sell those without a pretty good idea of who you are / or a proper script. In fact, on many medical devices, such as IV bags, it used to state under U.S. law, not to be sold without a physician's prescription.

My other concern with that, is the IV tubing is of such small bore, and diff oil of such high viscosity, that it might take a looong time to fill. At -1 degree C, I found it was quite thick, even with that large bore tubing I used on the hand pump. Also, you may need a second person to hold the bag, unless you are thinking of IV poles too. Sounds like you're building a Toyota hospital! That'd be cool to see!

My hand pump was $2.50 from my amsoil dealer, so pretty darn cheap...

cheers

D

06 DC LB S45 4X4: Roll 'N Lock / Philips Xtremes / Cobra CB / AllPro IFS, tranny & T-Case skids,1.25 spacers, 10 pack leafs/ R. diff breather mod / fogs-on mod /Nitto Terra Grapplers 265/75/16 / Hakkapeliitta LT studded/ Timbrens / Fox CO + 2.0 resi x4 / YotaFab sliders / Yaesu FT2600
VA6TAC
Highlander LE 2001 (wife's)
Dante's Taco is offline  
The Following 2 Users Say Thank You to Dante's Taco For This Useful Post:
DavidHB (01-01-2012), mkvaughan (01-07-2014)
Sponsored Links
Advertisement
 
Reply

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Truck, SUV and Van Forums > Highlander Forum > 1st Generation (2001-2007)

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Toyota Nation Forum : Toyota Car and Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome