Differentials and Transfer Case Part #s & Info

After reviewing many posts and needing parts for my Gen2 Tacoma I consolidated the info here for ease of use:

1. New Lexus front diff plugs with heads not hex key (14mm head)
(remove old plugs with a 10mm or 3/8” hex key socket)
Case takes 1.6 qts gear oil (and dropping the skid plate)
Drain Plug with magnet #90341-24016 about $8.50
Torque 48 ft-lbs on M24x1.5 thread
Drain plug washer/gasket #90340-24017 (old#24003) about $1.50
Fill plug #90341-18060 about $8
Torque 29 ft-lbs on M18x1.5 thread
Fill plug washer/gasket #12157-10010 about $1.50

Note stock Toyota 10mm hex key plugs are:
Drain #90341-24014
Fill #90341-18032

2. Rear Diff Toyota parts (24mm or 15/16” head)
Case takes 3.1 qts gear oil
Drain plug with magnet #90341-18057 about $8
Torque 36 ft-lbs on M18x1.5 thread
Fill plug #90341-A0002 (old#18006) about $5
Torque 36 ft-lbs on M18x1.5 thread
Drain and Fill plug washers/gaskets #12157-10010 about $1.50 each

3. Transfer case Toyota parts (specific for alum case) (24mm or 15/16” head)
Case takes 1.1 qts gear oil
Drain and Fill plugs #90341-14012 about $4.50 each
Torque 27 ft-lbs on M18x1.5 thread (Don't over torque Alum case!)
Drain and Fill washers/gaskets #90340-18008 about $1.50 each

Used Lucas 80w-90 gear oil per East Coast Gear Supply site (dino not syn) 6 qts
I use 12" of clear hose taped on spout of qt bottle to squeeze in (or get a pump)
I use a little Form A Gasket on plugs near head as positive seal so no leaks

My links:
Heavy Duty 80W-90 Gear Oil (lucasoil.com)

Toyota Genuine Parts - Toyota Parts Online - Richmond VA (mcgeorgetoyota.com)

Factory Lexus Parts and Accessories | Lexus Direct parts

 

@CAG Gonzo

 

This is awesome. Thanks for writing this up.

 

I thought ECGS recommended 85w140 for the rear. Did they change that to 80w90 which is what Toyota calls for, too?

 

They don’t specify say it for the 3rd member/rear on the Tacoma.
They do say to use it in the front.

I think OP will be just fine with 80w90.
Myself and others have used 85w-140 and had it leak out the breather.
It’s not a big deal, you just have to let it find the “happy place” where it no longer leaks out.
I’m serious, you can fill it back full and it will do it again.

I should also say, that not everyone experiences this. But those of us that have, know it makes a mess and sticks.

 

Well I use synthetic 75w90 in front and tcase and 85w140 dino in the rear. No leaks anywhere.

 

I have 80w90 in the rear
And 85w140 in the front currently.

 

Seems backwards. Rear is under way more stress and gets hotter. I change rear fluid 2x as much as the other diffs

 

I used that weight in the front because it was recommended when doing the bushing.

I don’t want to do it again. So I used what they said.

 

The FSM for my 2014 PreRunner V6 says 75W-85 GL5 and I use Red Line 75W-85 GL5 for the rear diff.

 

That’s what the Red Line web site will spec for front and rear diffs and GL4 75-90 for manual trans and T-case.

 

Sorry to revive this thread but does anyone know if the lexus part #s works for the third gen as well?

 

I believe the front differential remained the same in the 3rd gens. As an even stronger alternative to the Lexus plug for the front diff (the most problematic of our plugs), you can weld a 10mm socket onto the plug.

 

Just did the front differential and transfer case oil for the first time (59,000+ miles) after 12 years. Fortunately the front diff plugs came out without extra effort. Between the two, the total oil volume drained was ~ 2.1 quarts or ~ 0.6 quarts below what the specs say after adding the two together. I put back about the right volume using the "trickle from the fill port" method and checking my empty containers. Noticed the same thing when I did the rear diff for the first time. Curious about your experience with factory fluid volumes being low.