tranny/diff/t-case oil

4x4taco · 10-09-2005, 01:16 PM

I've never changed the oil in my tranny (5 spd), diffs or t-case and it's very overdue. Since this would be the first change, can/should I go to synthetic or stick with regular oil? Either way, what brands do you guys reccomend? Amisol seems to be good stuff but I want something I can go to a shop and buy. Are the oils for those specific or do all 3 parts take the same stuff? Thanks!

4Crawler · 10-09-2005, 02:19 PM

Your Owner's Manual will have the grades, weights and qty. of oil to use. Here is what my '85 O/M listed:

http://www.4crawler.com/4x4/4R_TechInfo.shtml#Fluids

and what I fill mine with:

http://www.4crawler.com/4x4/index.sh...ntheticGearOil

Bob_98SR5 · 10-09-2005, 02:30 PM

yes, look in your owner's manual in the specifications section (back of OM)

just buy mobil 1 products if you dont want amsoil stuff. if you decide on amsoil, let me konw because I (as well as many others) on the forum are independent dealers.

take a look at my writeup on the subject too: http://www.4runners.org/articles/difftsf

bob

bob200587 · 10-09-2005, 02:34 PM

I went with the cheap stuff, Coastal, I'm pretty sure on mine it was all the same weights.

AZBlackTacoma · 10-09-2005, 06:51 PM

Out of curiosity, how many miles does your 00 have on it?

TACOMANATOR · 10-09-2005, 07:30 PM

Quote:

Originally Posted by AZBlackTacoma

Out of curiosity, how many miles does your 00 have on it?

Time for yours too?

Elton · 10-09-2005, 10:29 PM

im to lazy to change mine i think its never been changed

4x4taco · 10-10-2005, 09:12 AM

Um...it has about 95k...I know, I know, I'm a horrible person for waiting this long! I think I'm just lazy also and would rather go drive it. But I have treated it well for those 95k miles. I try to drive really smooth on the street to minimize wear.

Bob, do you know what size washers/crush washers you need so I can get them before I start? Is there a problem with reusing the originals, I do that with my engine oil with no problems.

And about my main concern...it sounds as if I can switch to sythetic with no problems?

4Crawler · 10-10-2005, 09:29 AM

I've never replaced the washers on my tranny and axle plugs except when I went to the new hex socket style plugs. Never had any leaking problems and some of those plus are/were nearly 20 years old. You can get new washers from the dealer, the drain and fill plugs are 18mm OD.

I finally had to replace the original washer on my oil pan drain plug last time I changed oil. I think it may have been original.

4x4taco · 10-10-2005, 12:36 PM

I agree with you Roger, replacing them might be one of those things they say you should do, but it's really not that necessary unless they are obviously worn out. It just seems to create more of a hastle when you go to change the fluids.

CynicX · 10-10-2005, 05:33 PM

my wrx had a crush washer on the oil drain plug. I didnt replace it once and it leaked cause of the oil pressure. Some people get lucky but for something so cheap and easy to do it seemed silly not too. A crush washer is designed to be crushed once to form a tight seal around two illregular things, therefore its designed to only work once. But I'm sure it will probably be ok, but why risk it?

Of course it leaked under the pressure of the oil pump. Which the transfer case/diff/manual transmission dont have.

10-09-2005, 01:16 PM	#1 (permalink)
4x4taco Registered User Join Date: Feb 2004 Location: Portland, OR Posts: 180	tranny/diff/t-case oil I've never changed the oil in my tranny (5 spd), diffs or t-case and it's very overdue. Since this would be the first change, can/should I go to synthetic or stick with regular oil? Either way, what brands do you guys reccomend? Amisol seems to be good stuff but I want something I can go to a shop and buy. Are the oils for those specific or do all 3 parts take the same stuff? Thanks! __________________ '00 Tacoma TRD TJM T-15 / OME 882 & 1" BL / "custom" intake / 33x10.5 BFG A/Ts on Teflon Chambers / Demello sliders

10-09-2005, 02:19 PM	#2 (permalink)
4Crawler Contributing Member Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 6,202	Your Owner's Manual will have the grades, weights and qty. of oil to use. Here is what my '85 O/M listed: http://www.4crawler.com/4x4/4R_TechInfo.shtml#Fluids and what I fill mine with: http://www.4crawler.com/4x4/index.sh...ntheticGearOil __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs. r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad Gettin'Off 4WD Club

10-09-2005, 02:34 PM	#4 (permalink)
bob200587 Contributing Member Join Date: Feb 2005 Location: Nashville, TN Posts: 2,802	I went with the cheap stuff, Coastal, I'm pretty sure on mine it was all the same weights. __________________ 87 4runner 4x4 SR5 22RE ARB Bull Bar, 31X10.50 Mastercraft M/T's, Stock 4.10 Gears, Mellowtone Muffler AISIN Manual Hubs, Marlin Crawler Sliders 181XXX miles 92 Ford Ranger 4x2 4.0L 4 speed auto FOR SALE Needs Transmission And Head gasket work. Contact me for Details. Facebook "An Open Mind is Like a Fortress with its Gates Unbarred and Ungaurded." "There are two kinds of people in this world that go around beardless: boys and women, and I am neither one." -Greek saying

10-09-2005, 06:51 PM	#5 (permalink)
AZBlackTacoma Registered User Join Date: Oct 2005 Location: Peoria, Arizona Posts: 48	Out of curiosity, how many miles does your 00 have on it? __________________ www.tacomaforums.com

10-09-2005, 10:29 PM	#7 (permalink)
Elton Contributing Member Join Date: Jul 2005 Location: Toledo,Oregon Posts: 9,079	im to lazy to change mine i think its never been changed __________________ My Truck 98 4runner SR5 3.4L 5spd 4x4 E-Locker Mods Mom 07 Tundra d-cab limited 5.7L 4x4 auto mom 92 pickup SR5 X-cab 3.0L 5spd 4x4 Papa 89 Pickup SR5 X-cab 4x4 3.0L 5spd/98 4runner SR5 4x4 auto 3.4L R.I.P 91 4runner SR5 4x4 3.0L 5spd Totaled 5/13/06 My Wreck

10-09-2005, 02:30 PM	#3 (permalink)
Bob_98SR5 Contributing Member Join Date: May 2002 Location: Los Angeles Posts: 10,115	yes, look in your owner's manual in the specifications section (back of OM) just buy mobil 1 products if you dont want amsoil stuff. if you decide on amsoil, let me konw because I (as well as many others) on the forum are independent dealers. take a look at my writeup on the subject too: http://www.4runners.org/articles/difftsf bob

10-10-2005, 09:12 AM	#8 (permalink)
4x4taco Registered User Join Date: Feb 2004 Location: Portland, OR Posts: 180	Um...it has about 95k...I know, I know, I'm a horrible person for waiting this long! I think I'm just lazy also and would rather go drive it. But I have treated it well for those 95k miles. I try to drive really smooth on the street to minimize wear. Bob, do you know what size washers/crush washers you need so I can get them before I start? Is there a problem with reusing the originals, I do that with my engine oil with no problems. And about my main concern...it sounds as if I can switch to sythetic with no problems? __________________ '00 Tacoma TRD TJM T-15 / OME 882 & 1" BL / "custom" intake / 33x10.5 BFG A/Ts on Teflon Chambers / Demello sliders Last edited by 4x4taco : 10-10-2005 at 09:18 AM.

10-10-2005, 09:29 AM	#9 (permalink)
4Crawler Contributing Member Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 6,202	I've never replaced the washers on my tranny and axle plugs except when I went to the new hex socket style plugs. Never had any leaking problems and some of those plus are/were nearly 20 years old. You can get new washers from the dealer, the drain and fill plugs are 18mm OD. I finally had to replace the original washer on my oil pan drain plug last time I changed oil. I think it may have been original. __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs. r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad Gettin'Off 4WD Club

10-10-2005, 12:36 PM	#10 (permalink)
4x4taco Registered User Join Date: Feb 2004 Location: Portland, OR Posts: 180	I agree with you Roger, replacing them might be one of those things they say you should do, but it's really not that necessary unless they are obviously worn out. It just seems to create more of a hastle when you go to change the fluids. __________________ '00 Tacoma TRD TJM T-15 / OME 882 & 1" BL / "custom" intake / 33x10.5 BFG A/Ts on Teflon Chambers / Demello sliders

10-10-2005, 05:33 PM	#11 (permalink)
CynicX Contributing Member Join Date: Jul 2004 Location: Maryland Posts: 2,371	my wrx had a crush washer on the oil drain plug. I didnt replace it once and it leaked cause of the oil pressure. Some people get lucky but for something so cheap and easy to do it seemed silly not too. A crush washer is designed to be crushed once to form a tight seal around two illregular things, therefore its designed to only work once. But I'm sure it will probably be ok, but why risk it? Of course it leaked under the pressure of the oil pump. Which the transfer case/diff/manual transmission dont have. __________________ 06 Subaru WRX

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