Hello people of yotatech
I am new to the forum and had a question. I have been searching everywhere but can’t get a straight answer. I just bought a 2007 Toyota 4runner Sports Edition 4x4 V6 (Vin # JT). I wanted to replace the diff lube. The question is, do I have a Mechanical limited Diff which requires special lube or is it an Electronic locker? I did not see a sticker saying “LSD Oil Only” on the Differential but the sticker could have fallen off. I was able to stick my camera above the diff and found a sticker saying “E4” “B245”, could someone help me by let me know what kind of lube to use, and what kind of diff this is.
Thanks

 

e-locker is easy to spot; has a bulk bolted to the side of the 3rd member that is the electronic actuator that locks the diff in. in this photo below, my original non e-locker rear end is on the bottom, and the e-locker rear end I installed is on the top. notice the actuator bolted to the right side






limited slip diffs, there won't be any obvious distinguishing differences from a standard open diff

honestly, to make life a lot easy, you may just want to call up a local dealer with your VIN. they should be able to tell you everything about it; what diff is in it as well as the oil you need to use. of coarse they're going to recommend a Toyota brand fluid

 

07 4runner probably has an open diff and may have auto LSD. Auto LSD uses the brake actuator to apply the brakes to the slipping wheel. Those use standard 80w- 90 GL5 gear oil. Jack up one rear wheel in park and if it spins its an open diff. If not, it has the LSD that requires an additive.

 

I dont think any LS diff was available on 4th gens. I think it was either open or e-locker (on '09+).

But, to test, jack up the rear so both tires are off the ground. Spin one tire. If the other tire goes in the opposite direction, its open. If it spins in the same direction, it has a limited slip

 

Thanks for all the help Guys ...

It is a Open Diff with a Elocker.

I did notice some thing else that is of concern to me. The let brake dust cover had oil on it, and i am pretty sure that it is diff lube (cause the only other thing it can be is brake oil and i am not losing any of that) so does that mean the the axel bearing is leaking ??

How hard of a job is it to change that??? special tools required?

 

Axle seal is probably leaking. No special tools to replace the seal, but if fluid contaminated the bearing, its a good idea to replace it as well. You'll need a press and an adapter to press the axle out of the bearing.

 

Since i have never pulled a axle appart i am woundering it there a write up any where ... or is that a silly question to ask..
I tried searching but did not find any thing specifice just general stuff.

 

There should be some write ups here. Might be a good idea to buy a factory service manual. Or you can buy a 2 day subscription and print what you need at www.techinfo.toyota.com