Differential arrived today

EDIT:
My original choice was the Detroit True Trac which I could get a new one installed for $1100 (cheaper than the $1410 that I paid for this) but I've read a few posts about the True Trac bolts "backing out" & damaging the diff. If not for that I would've bought the Detroit.


Hello Forum,

This morning I received my diff (41110-35A70), diff gasket (

$18 42181-34011 Differential Gasket

42181-34011) & 3 cans of GL-5

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

75W-90 oil (

$46 08885-02106 Hypoid API GL-5 75W-90 Gear Lube - 1 Quart

08885-02106) but I was not billed for any friction modifier. I called the dealership and they said that there is no separate friction modifier & that with this oil (hypoid, which Chris informed me is our gear type) it is not necessary. I called another Toyota dealership & they told me the same thing.

I PM'd Chris4x4 and he told me that I will need it & to use the one for Mopar vehicles since their LSD's are similiar to Toyota's. He has had his for 70,000 miles without issues so I value his info. Meanwhile, my mechanic called the other 6 Toyota Dealerships in Miami & South Broward and ALL of them said that I don't need it. A few of them put my mechanic on hold to then go ask the service department guys who also said that with the oil that I bought it is not necesary.

Now, never leaving anything to chance I will follow Chris' recommendation & purchase a 4 oz bottle of friction modifier when I return to work tomorrow.

Chris has done his diff service himself but I would like to ask a favor of anyone with an '05-'08 with OEM mechanical LSD who has paid the dealership to do there diff service.

PLEASE look at your receipt & check if you see the same part # as my oil & if there is an additive listed. I just can't BELIEVE that none of them even have a part # for it. I mean, do they buy the additive from the auto parts when they service their customers vehicles? At $20.00 each bottle I would hope that they could give me accurate info. I'm stumped.

Thanks forum


PS. THANK YOU CHRIS for taking the time to reply to my posts

PSS. i don't know what the clutches look like inside the diff but when I turn the Pinion Flange both sides rotate in the same direction.

Here are a couple of pics of the new parts:

 

Hey Chris,

Is this good? Advance Auto Parts has it.

K & W Chemical Trans-X® Posi-Trac® Limited Slip Gear Oil Additive



It's a 7 oz bottle

Thanks

 

The right part number for the o.e lsd oil is 08885-02606, but it is expensive, u have has to replace a differential due to the clutches chattering due to using the improper oil. This is a Tsb about using the proper oil. I've tried the Chrysler LSD additive but really didn't have any luck with it, the Ford one works good but there is two different additives, and that's what the Toyota tech line would tell us to use.

 

I use BG limited slip additive in my 05 rear end and I have not had any issues. I would think the stuff you have posted should do the trick. Do you have a BG supplier in your area?

 

http://www.ebay.com/itm/BG-LSII-LS2-Limited-Slip-Axle-Additive-Concentrate-6oz-/270685229753 Bg's good stuff

 

Not sure if the Advance Auto parts product is correct.

I have used it, but that was in the in-laws Isuzu Trooper.

This is a cobbled together copy and paste from the oem manual for 05 /06

Toyota?PP–72 PREPARATION – DIFFERENTIAL LUBRICANT
Item Capacity Classification
Front differential oil 1.45 to 1.55 liters
(1.54 to 1.64 US qts, 1.28 to1.36 lmp. qts)
Hypoid gear oil APL GL-5
Above -18 °C (0 °F): SAE 90
Below -18 °C (0 °F): SAE 80W or 80W - 90

Rear differential oil 2WD 3.26 to 3.36 liters
(3.45 to 3.55 US qts, 2.87 to 2.95 lmp. qts)
Hypoid gear oil APL GL-5
Above -18 °C (0 °F): SAE 90
Below -18 °C (0 °F): SAE 80W or 80W - 90

Rear differential oil
Pre, 4WD 2.75 to 2.85 liters
(2.91 to 3.01 qts, 2.42 to 2.50 lmp. qts)
Hypoid gear oil APL GL-5
Above -18 °C (0 °F): SAE 90
Below -18 °C (0 °F): SAE 80W or 80W - 90

No mention of limited slip additive. As mentioned though, there could be a TSB explaining to use it.

My diff came today also, I opted a different route, I did not want the pain of LSD additive, or clutches, I went with a Truetrac gear type limited slip.

Looks like you bought an entire assembled 3rd. Makes it easy to swap, but didn't your truck have a LSD already.

PK

 

I bought this new because I want to have Limited Slip in my truck. It came factory with a standard open-diff. My truck has 53,400 miles and my current, original diff is fine.

None of the dealerships that I called mentioned the $75 gear lube. This crap is really confusing!

 

My original choice was the Detroit True Trac which I could get a new one installed for $1100 (cheaper than the $1410 that I paid for this) but I've read a few posts about the True Trac bolts "backing out" & damaging the diff. If not for that I would've bought the Detroit.

 

Wow labor must be really high in Miami. I installed a true Trac for Dave here in Alabama and I think the entire job, installed was only about $700 for that part of the work if memory serves correctly.

 

Yeah. Labor and everything else is high here. I always tell my wife that I don't see us growing old here.

BTW, I would like to thank everyone for their input so far