rear differential oil

I'm due for my 30,000 mile service and I notice in my maintenance log I need to change my rear differential oil. Has anyone ever done this? Is it hard to get to? What oil do I replace it with?

Any help is appreciated.

 

Helpful link : http://www.tacomaworld.com/forum/technical-chat/24545-changing-differential-fluid-step-step-how.html

BTW the tube of friction modifier is only for the TRD Sport

 

You have a TRD off road, which means you don't have limited slip. You can use 80w90 or synthetic 75w90.

 

which would be the best to use? I am gonna change mine out this wknd. And is it the same for the front diff as well?

 

My truck does have thr RR Differential Lock. It is part of the Avalanch Off Road package. Thanks.

 

Since it doesn't cost much more and gives your truck more protection, I would run the synthetic 75w90. However, Toyota used conventional oil at the factory, so if you're on a tight budget, you'll be fine with that too.

 

no, its just part of the Off Road pkg. All TRD Off Roads have the RR Diff Lock.

 

You only need limited slip additive if you have the 05-08 lsd rear end. The locking diff does not need it.

 

Neither does an '09+ Sport. The limited slip is handled by the brakes, NOT the differential as of '09. For '09+, just use

$30 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75W-90.

 

I did mine a little over a month ago but I have a Sport so mine is the LSD. I used 80W-90 for the rear diff and a 4oz. bottle of Redline friction modifier. Now bangs or grinding noises. Then for the front diff and transfer case, I used Redline

$30 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75W-90 synthetic gear oil. So far, no issues whatsoever. I know the OP drives an off-road edition but just in case any of you sports guys had questions as well.

 

so 2010 sports dont need the friction modifier? I thought it had limited slip diff, vsc, and traction control? no?

 

Like I said above, '09 and newer do not use a mechanical LSD - no clutches in the diff. They use a new system that controls the throttle and brakes to limit slip. It's not inside the diff, so you don't need anything but pure

$30 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75W-90. It's this way on my '09 SPORT. Perhaps the Off Road is different, but an O.R. owner that knows, can chime in.

 

what brand do you guys use? I would like to run synthetic but if its over 10 bucks a qt, I have to say hell to the nah. I was thinking of running the Lucas

$30 75w-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75w-90, has anyone ran it?

 

This is what I ordered and used for rear diff, front diff, trans. Did all at the same time. Check it out. http://avlube.com/mob1syngearo.html

 

Personally, I only use Red Line lubes. I've used them for years in everything I own that uses oil... cars, trucks, bikes, generators, tractor. It's over your price break though.

In the diffs I use Red Line

$30 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75W-90. In the tranny and transfer case (6speed) I use Red Line MT-90.

 

if my truck is TRD Sport, "LSD", can I use Castrol Syntec 75W90? its GL-5

 

What YEAR is your TRD Sport???? If it's an '09 or newer, the LSD is handled with braking and throttle, NOT the differential. Plain

$30 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75W-90 should be just fine.

If it's older than an '09, wolfpack is probably right.

If it meets the same specs as the gear oil spec in your manual, it is FINE.

edit - I did just see your sig... if still accurate and you have an '05, listen to wolfpack...

 

has to be 80W90 mineral oil then?

 

I just changed my rear diff oil on tuesday and used 3qts of Valvoline's 80w90 LSD gear oil with a 4oz tube of CRC friction modifier and it has worked great for me. My LSD was chattering a lil bit before and it immediately went away with this lube combo. BTW mine is an '08 sport so it has the mechanical LSD...

 

can mobil one 75w90 LS be used in a trd off road locker diff? how bout in the xfer case?