Changing differential fluid - A step by step "HOW TO"

ph16drive · 01-22-2009, 03:17 AM

Quote:

Originally Posted by WW_FIREFIGHTER

Hey great write up chris and brian!!! This was exactly what I needed to know! Quick question. I know you need 3 quarts of oil but with the extra 4oz. of the lsd fluid, did you guys end up with some left over or were you able to get it all in?

X2

Also, where do you dispose of the stuff? Will Autozone take it like they do with engine oil?

Motoknuckle · 01-22-2009, 03:26 AM

I'm guessing it's pretty much the same steps for a 1st gen? I don't feel like crawling under my truck.

chris4x4 · 01-22-2009, 06:47 AM

Quote:

Originally Posted by WW_FIREFIGHTER

Hey great write up chris and brian!!! This was exactly what I needed to know! Quick question. I know you need 3 quarts of oil but with the extra 4oz. of the lsd fluid, did you guys end up with some left over or were you able to get it all in?

I put in 1 quart of fluid first, then the 4oz. of additive, then filled until it started comming out. I capped it off, drove the truck about 40 feet, then topped off the diff with the rest of the oil. It held exactly 3 quarts 4 oz.

chris4x4 · 01-22-2009, 06:48 AM

Quote:

Originally Posted by Motoknuckle

I'm guessing it's pretty much the same steps for a 1st gen? I don't feel like crawling under my truck.

First gen uses the same diff, just a little narrower. I think the specs call for just under 3 quarts for th efirst gens.

WW_FIREFIGHTER · 01-22-2009, 07:12 AM

Quote:

Originally Posted by chris4x4

I put in 1 quart of fluid first, then the 4oz. of additive, then filled until it started comming out. I capped it off, drove the truck about 40 feet, then topped off the diff with the rest of the oil. It held exactly 3 quarts 4 oz.

Sweet!! Got yah, thanks!!!

chris4x4 · 01-22-2009, 07:17 AM

Quote:

Originally Posted by ph16drive

X2

Also, where do you dispose of the stuff? Will Autozone take it like they do with engine oil?

They should.

taco084gb · 01-22-2009, 10:56 AM

Quote:

Originally Posted by ph16drive

X2

Also, where do you dispose of the stuff? Will Autozone take it like they do with engine oil?

Our Wal Mart here said they will take the oil for no charge. but have not taken it there yet to see. Our Garbage dump takes it for no charge and since Im at the dump once in awhile it works for me.

brianr · 01-22-2009, 11:03 AM

Quote:

Originally Posted by ph16drive

X2

Also, where do you dispose of the stuff? Will Autozone take it like they do with engine oil?

OOPS, I forgot something. I'm not sure where Chris was going to do with the old (I guess maybe I should have taken it).

When I change my oil, I take it to the local Checker/Kragen store.

spaghettiedy · 01-22-2009, 11:11 AM

Good job guys!!! This should be stickyed or put in mods & Tutorials.

Thanks in advance admin and mods

Motoknuckle · 01-22-2009, 02:23 PM

Right on guys!

I'm a little reluctant to changing anything other than the engine oil, but now I'll give this a shot.

tacomaman06 · 01-22-2009, 02:52 PM

Quote:

Originally Posted by taco084gb

Hey tacoman
I did my front and rear diff with 75/90w Royal purple. I have the electric locker in the rear. The manual said replace at 15,000 miles and the stealer wanted $90 for the rear only. Took me about an 1 hr to do both. Have about 3500 miles on it so far and no problems. Do a lot of offroading and pulling a 3500 pound trailer about 2 a month.Hope this helps.

By the way nice write up on this never thought of doing it. I take it for granted since I rebuild gear boxes on a regular bases at work.

Quote:

Originally Posted by WW_FIREFIGHTER

Dang I could have sworn my manual said every 30,000.

i use mobil1.......................iwas just asking chris if he had tried synthetic royal purple, since mobil1 didnt do so well in the lsd for him(i have the locker)..........and the manual for the 06 i had and the manual for the 04 i have now say every 30k....diff fluid change.

bigredscowboy · 02-14-2009, 12:49 PM

anyone know the hex size on the front diff for 1st gen? anyone had success getting the rear fill plug out when it was stuck?

harshest · 02-17-2009, 02:43 PM

Did you guys use the Genuine Toyota LSD Additive? If not what brand did you use?

chris4x4 · 02-17-2009, 02:54 PM

Quote:

Originally Posted by harshest

Did you guys use the Genuine Toyota LSD Additive? If not what brand did you use?

Yep. We used the OEM Toyota addative. 4ozs.

jshaw · 02-18-2009, 05:48 AM

Sorry to bring back an old thread but yesterday I bought Mobile 1 synthetic gear oil to change my LSD rearend this weekend. I also bought a tube of additive. I stumbled across this thread this morning and am now concerned about using it since it seems Chris had a bad experience. Has anyone come up with new results? Should I use Royal Purple synthetic or go with conventional gear oil? Thanks

brianr · 02-18-2009, 05:54 AM

Quote:

Originally Posted by jshaw

Sorry to bring back an old thread but yesterday I bought Mobile 1 synthetic gear oil to change my LSD rearend this weekend. I also bought a tube of additive. I stumbled across this thread this morning and am now concerned about using it since it seems Chris had a bad experience. Has anyone come up with new results? Should I use Royal Purple synthetic or go with conventional gear oil? Thanks

As you see in our wrtie-up, I/we chose to go with conventional 75-80/75-90 "Dino" oil.

I have read on other forums guys having problems in the LSDs' using synthetic Mobil 1, and guys having good luck with RP. Maybe it has somehting to do with the LSD additive...

Not having the first hand experiance from using those, Chris4x4 should be able to answer better.

chris4x4 · 02-18-2009, 06:55 AM

Quote:

Originally Posted by jshaw

Sorry to bring back an old thread but yesterday I bought Mobile 1 synthetic gear oil to change my LSD rearend this weekend. I also bought a tube of additive. I stumbled across this thread this morning and am now concerned about using it since it seems Chris had a bad experience. Has anyone come up with new results? Should I use Royal Purple synthetic or go with conventional gear oil? Thanks

I used different combos of Mobil 1 and the Addative. I tried it with no addative, 2oz., 4oz, 8oz. Enev tried the Mobil 1 LS, which is supposed to have the addative in it or something. No luck. After a few days, the rear chirped and howled.
Personally, If you do any towing, or get your diffs underwater, use dino oil in the diffs.You gotta change them more frequently anyway, so why spend the money.

jshaw · 02-18-2009, 07:56 AM

Thanks Chris. I will use the dino oil for the rear. One more reason this is such a great, informative site.

wolfpack_5150 · 02-28-2009, 02:31 AM

Quote:

Originally Posted by Snipe

Mmmmmmmmmmm diff fluid smell

I hate that smell, I always get stuck doing the truck cranes @ work and I swear I can smell that crap for 3 days after.

We at least have 5 gal pails with pumps so it goes pretty fast

The stuff gets in your pores at least thats how it seems. At least GL-4 does smell kinda sweet.

Quote:

bigredscowboy anyone know the hex size on the front diff for 1st gen? anyone had success getting the rear fill plug out when it was stuck?

I think its a 10mm hex, could be 12 but im leanin towards 10.......... Stuck as in rounded? EZ outs are awesome, chisels work (to make a groove then spin it off), vise grips.

09 tacoma trd · 03-03-2009, 10:42 AM

can you use synthetic in the rear end for a 2009 sport. it has a lsd but it is electronic.

01-22-2009, 03:26 AM	#42
Motoknuckle Braaaaap! Name: Caleb Joined: Dec 2008, #11694 Location: Iowa Age: 22 Gender: Male Posts: 580 02 Prerunner xtracab V6 2002 Xtra Cab Automatic 3.4 Tint, Clear Corners,	I'm guessing it's pretty much the same steps for a 1st gen? I don't feel like crawling under my truck. __________________ 2002 Toyota Tacoma xtra cab SR5 Clear Corners, Tint, TomTom GPS 16" KMC Enduros wrapped with Nitto Terra Grapplers Engage LT kit coming soon....

01-22-2009, 11:11 AM	#49
spaghettiedy Senior Member Joined: Sep 2008, #9470 Location: Pittsburgh Age: 29 Gender: Male Posts: 665 09 DC LB Sport in Black 4x4 2009 Double Cab Automatic 4.0 V6 Gray Weathertechs, LG Wet Okoles, Tacome OEM Bedmat	Good job guys!!! This should be stickyed or put in mods & Tutorials. Thanks in advance admin and mods __________________ FDLFDD - Friends Don't Let Friends Drive Dakotas

01-22-2009, 02:23 PM	#50
Motoknuckle Braaaaap! Name: Caleb Joined: Dec 2008, #11694 Location: Iowa Age: 22 Gender: Male Posts: 580 02 Prerunner xtracab V6 2002 Xtra Cab Automatic 3.4 Tint, Clear Corners,	Right on guys! I'm a little reluctant to changing anything other than the engine oil, but now I'll give this a shot. __________________ 2002 Toyota Tacoma xtra cab SR5 Clear Corners, Tint, TomTom GPS 16" KMC Enduros wrapped with Nitto Terra Grapplers Engage LT kit coming soon....

02-17-2009, 02:43 PM	#53
harshest I am the Sofa King Joined: Aug 2008, #8508 Location: Michigan Age: 30 Gender: Male Posts: 593 05 PreRunner SR5 2005 Access Cab Automatic 6c Fog Light On, Hidden Garage Door Opener, Scanguage II, Weathertech Liners, Cig lighter always on, Door buzzer removed from dash- Upcoming: 5100s for front and rear, set fronts to 2.5" and Toytec AALs.	Did you guys use the Genuine Toyota LSD Additive? If not what brand did you use? __________________ {Hidden Garage Door Opener} {30,000-60,000-90,000 Maintenance} {Service History Guide} {OEM Repair Manual} {Cheap/Free Mods} {TN DIY Mods} {Toyota Service Guide} {Options/Packages}

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02-14-2009, 12:49 PM	#52
bigredscowboy Junior Member Joined: Nov 2008, #10964 Location: Western NC Gender: Male Posts: 19 2000 TRD 4x4 2000 Access Cab Manual 3.7L 3200	anyone know the hex size on the front diff for 1st gen? anyone had success getting the rear fill plug out when it was stuck?

02-18-2009, 05:48 AM	#55
jshaw Junior Member Name: Jeff Joined: Jan 2009, #12830 Location: S.C. Gender: Male Posts: 23 06 TRD Sport White 2006 Double Cab Automatic UWS black tool box, ScanGuage with Blend Mount, Rear AAL with 5100's all around,Total Chaos UCA's, Firestone air bags, BHLM with HID's	Sorry to bring back an old thread but yesterday I bought Mobile 1 synthetic gear oil to change my LSD rearend this weekend. I also bought a tube of additive. I stumbled across this thread this morning and am now concerned about using it since it seems Chris had a bad experience. Has anyone come up with new results? Should I use Royal Purple synthetic or go with conventional gear oil? Thanks

02-18-2009, 07:56 AM	#58
jshaw Junior Member Name: Jeff Joined: Jan 2009, #12830 Location: S.C. Gender: Male Posts: 23 06 TRD Sport White 2006 Double Cab Automatic UWS black tool box, ScanGuage with Blend Mount, Rear AAL with 5100's all around,Total Chaos UCA's, Firestone air bags, BHLM with HID's	Thanks Chris. I will use the dino oil for the rear. One more reason this is such a great, informative site.

03-03-2009, 10:42 AM	#60
09 tacoma trd Senior Member Joined: Jan 2009, #12994 Location: quebec, canada Gender: Male Posts: 120 2009 black tacoma dbl cab trd sport 2009 Double Cab Automatic V6/4.0	can you use synthetic in the rear end for a 2009 sport. it has a lsd but it is electronic.

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