LSD Gear oil

[CAMB01]

Hi all, this has probably been asked before but what oil do you recommend i put in my AE101 LSD gearbox?
Cheers
Cam

[NZ_AE86]

ATF is the way to go.

[CAMB01]

Well i wanna put a proper gear oil in suited for those types of gearboxes.

[Mr Revhead]

what kind of LSD is it?
if its viscous (stock type) then normal gearbox oil is fine
if its helical gear type, quaife or TRD then normal gearbox oil is fine.
and if its clutch pack type use LSD oil

[vvega]

i fits a clutch typr you need the trd plate lsd oil
atf will $&#$% your bos as will normal lsd oil

end

v

[NZ_AE86]

i fits a clutch typr you need the trd plate lsd oil
atf will $&#$% your bos as will normal lsd oil

end

v

What will it $&#$% in the box??

[vvega]

The GL ratings are specified by the API and are as follows:

GL-1: Specified for automotive spiral-bevel and worm gear axles and some manual transmissions subject to mild service and that can be sensitive to some EP additives. These lubes usually contain rust and oxidation inhibitors, defoamants and pour point depressants but do not contain any EP additives or friction modifiers.

GL-2: Specified for automotive worm gear axles that are subject to more severe service than that which is covered under the GL-1 specification.

GL-3: Specified for manual transmissions and spiral-bevel axles operating under moderately severe service.

GL-4: Specified for hypoid gear service without shock loading, but still moderate to severe service (high speed/low torque and low speed/high torque). These lubes may be used in manual transmissions and transaxles where EP additives are acceptable and typically contain a different zinc additive combination. This classification is still commonly used, but is also obsolete. It is also a commonly specified for marine outboard and stern drive lower unit gears and bearings where the manufacturer specifies GL-4 rated performance. GL-4 rates lubes are not recommended as a replacement for GL-5 rated lubes. “GL-5 rated lubes shows significantly better anti-wear (anti-score) properties than GL-4 rated oils under similar service conditions”

GL-5: Specified for hypoid gears under shock loading and severe service operating conditions used in cars and trucks. This is the most common and widely used specification today. These lubes have a high level of EP additives and, depending on the manufacturer and formulation, could be mildly corrosive to non-ferrous parts in certain applications.

GL-6: This classification is obsolete and/or was never formally adopted by the API, although I have seen some racing type gear lubes advertised as “high-performance GL-6”. It is more than likely advertised this way for marketing purposes.

API MT-1: Specified for manual transmissions that do not have synchronizers. The oxidation level and thermal stability is higher than GL-1, GL-4 and GL-5.

MIL-PRE-2150E: Specified by the military for automotive gear lubes. It combines the requirements of API GL-5 and MT-1.

atf is generally GL-1
toyota requires GL-4/5 in the manuel gearboxes

atf has very litle viscosity and will cause hightened syncro wear

Product SAE Viscosity
Dexron II & Type F 5W-20
Dexron III, Mercon V & ATF Plus 4 0W-20

toyota recomensds a 75w/90 oil with the gl 4-5 spec

to be honest there are no hypod drives in the gtz box so a gl4 oil would be best as it dose not have the sulfur adatives that rot out your syncros that gl-5 has
gl5- is more for gt4's and alikes that have a hypiod drive to the rear axel

cheers

v[/quote]

[Mr Revhead]

some late model toyotas use T4 atf (dextron 4) in their boxes. but they are things like 6 speed supras and 2003 onwards models

toyota usually puts some kind of mark or specs on or next to the filler bung if any special fluids are required. though i dont know if they started that just recently or always have.

if in doubt, ask ya local dealer, they have spec sheets with that info.
but thats only for STOCK parts..... an ae101 with LSD is more than likely had one fitted

[vvega]

if its a 101 gtz box they are all lsd
v

[Mr Revhead]

yeah thats true, and they are viscous so normal gear oil