What type of diff oil do I need for my 97 taco?

I'm redoing seals on my rear diff and I need to know what type of diff oil I need. Any help?

 

owners manual says

front diff

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

75w-90 (if you have ADD {4x4 actuator})
OR
80w-90 (without ADD {if you have the 4x4 locking hubs instead})

rear diff
80w-90

now the part # for the seal/washer thing for both diff plugs is :

$21 12157-10010 Toyota Oil Drain Plug Crushable Steel Gaskets Set of 10 OEM 12157-10010

12157-10010
plus the copper washer for the front diff fill plug :

$8 90430-24003 Front Differential Drain Plug Gasket

90430-24003

 

thanks my taco didnt come with an owners manual.

 

No mine has worn off. My truck has 360k on it. Is that your front diff? I was told it's different from front to back. And how much do I need to fill? Is it synthetic or non synthetic?

 

I have the fsm for my 95.

I am doing the trans, front diff, rear diff, xfer case, plus greasin all the driveline zerks this weekend.

I bought 2 gallons of amsoil full synthetic gl5 80w90. This is also what the PO used. I'm also using the amsoil nlgi #2 grease.

Brand doesn't matter but I think you'll be good with any synthetic 80w90 gl5.

Don't forget the crush washers. @gunny1005 can supply what you need if you can wait a day or two for shipping.

Good luck, be safe and have fun.

 

Are the crush washers needed if you change your front and rear diff?

 

But i should use synthetic for the truck?

 

So I'm kinda confused. That's two different answers. 75-90 or 80-90?

 

If I'm using Synthetic. Does that mean i have to change all my fluids to synthetic(Engine oil, front and rear diff, and transmission oil)Ive got a 3.4 4x4 5 speed. I just bought this truck this week as an learning experience so any information would be amazing.

 

I recommend synthetics in everything, it's a far superior oil and lasts longer and lubricates better. The extra cost is worth it in the long run. 75w or 80w shouldn't matter, they're both 90wts when they come up to temperature. My owners manual says 75w90 for all the gearboxes including the rear, maybe it's a 04 thing? I dunno.

 

owners manuals says two different oil grades because of the front diff actuator, but it says 80w-90 for the rear diff, no matter if you have the locking rear diff (which also has an actuator) or not

But anyway, you can use 80w-90 instead of

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

75w-90 or vice-versa, as there isn't much of a difference between the two

 

You can use either synthetic or dino in any or all of those. If you are going to use one weight oil in all the diffs it makes sense to use the same in all so you only have one kind to buy. IIRC, the manual calls for different specs for the transmission than the diffs/T-case. I will try to get my manual & post the specs later.

 

Thank you guys I really appreciate it

 

What type of diffs are in the rear for the 97 3.4 tacos?

 

It'll most likely be the 8.4" open diff, there's also an 8" diff with an elocker but I don't think those are as common on the '97. If it has the diff locker there will be a button left of the steering wheel on the dash that says "RR DIF LOCK". As far as gear ratios, there's a code on the sticker in the door jam u can look up. It'll be something like A03B or along those lines.

 

Here are the codes. So you can decipher yours.

 

This is what I have on my truck. Which numbers are the numbers I'm supposed to be looking at.

 

will i need the additive for the diff oil?

 

Look above "MADE IN USA", you have B03A

no, no need for additives

 

That make so much more sense thank you.