DIY: Differential Breather Extension

firesniffer2001 · 01-31-2009, 05:29 PM

what is the uion size and were did you get it?

TicTacOma · 01-31-2009, 05:35 PM

1 "union" (Toyota part# 9040451026)

Reread the post,he has all the ingredients there for you. Doesn't get any easier. Unless you get Chris to do it and then all you have to do is hold the camera and the eyewash.

firesniffer2001 · 02-01-2009, 05:32 AM

Thanks I missed it.

miked · 03-03-2009, 11:30 PM

Is it necessary to put teflon tape on the camary union?Also should it have any threads showing or should it tighten all the way down?Thanks!

thenrie · 04-22-2009, 12:04 PM

That looks like a lawn mower fuel filter. Look in the lawn and garden section of any hardware store, not in the automotive section.

Slick Nick · 06-15-2009, 01:37 PM

good writeup

STLharry · 07-22-2009, 08:44 PM

done. the only thing that was a PITA were the little 8mm bolts holding the splash guard at the top of the filler neck. On a 96, my guess is that theyve never been touched so they were rusted up pretty well. I broke 3 of 4 and had to drill them out, then i just replaced them with 10mm screws. Whatever works.

BTO · 11-16-2009, 08:30 AM

What is the advantage to locating the filter/hose vent in the gas filler area?

rob1 · 11-16-2009, 09:07 AM

Quote:

Originally Posted by BTO

What is the advantage to locating the filter/hose vent in the gas filler area?

the very first post had the answer,which was this:
"As air expands and contracts from temperature changes within the rear differential, the breather allows the differential to "breathe". However, with the stock location of the breather, it is possible for the differential to "inhale" water in certain situations. By relocating the breather to a higher position on the vehicle, this can be prevented."
Welcome to Tacoma World!!

BTO · 11-16-2009, 10:29 AM

Hey Rob1,

Yes, that location does make it high and out of any water but I was thinking it may be in the way? I could see myself banging it with a gas pump nozzle. Maybe the use of something smaller than the fuel filter like a tiny orifice or the original diff breather?

trdkamuri51o · 01-28-2010, 07:56 PM

going to do this in about 2 weeks.. toyota stock the part regularly?? and what did it cost you guys??

vicstacoma · 02-20-2010, 10:30 PM

Quote:

Originally Posted by BTO

Hey Rob1,

Yes, that location does make it high and out of any water but I was thinking it may be in the way? I could see myself banging it with a gas pump nozzle. Maybe the use of something smaller than the fuel filter like a tiny orifice or the original diff breather?

yes you can use the original diff breather at the top end of the fuel line... that is what most people do... no need to be searching for any filters!

vicstacoma · 02-20-2010, 10:32 PM

Quote:

Originally Posted by trdkamuri51o

going to do this in about 2 weeks.. toyota stock the part regularly?? and what did it cost you guys??

at the dealership around they didn't have it in stock, but they were able to get it the next day.. it was about $7.

TKGN1 · 03-16-2010, 01:45 PM

I did this mod last week and went with a simular set-up, but used these parts:
1/8" BSPP male to 1/8" NPT female from McMaster-Carr, example: http://www.mcmaster.com/#order-history/=68wc0a
Remove your stock breather and screw this piece in place.

Then get a 1/8" NPT male to 3/8" hose barb, example: http://www.mcmaster.com/#barbed-hose-fittings/=68weu2
screw this piece into the 1/8" NPT female fitting

using a couple feet of 3/8" fuel line I ran it up to the fuel tank door as mentioned and slipped the hose onto the stock breather and clamped it on

Just a side note, the fitting in the rearend is 1/8 BSPP (1/8-28) not to be confused with 1/8 NPT (1/8-27). They are very simular but you can't screw a 1/8 NPT into the breather hole in the axle.
HTH

01-31-2009, 05:29 PM	#21
firesniffer2001 Junior Member Joined: Jan 2009, #13156 Location: Spotsylvania,Va Gender: Male Posts: 4 1999 TRD Tacoma 1999 Access Cab Manual 3" toytec coils in front add a leaf in rear shocks on all corners 32x11.50 BFG on american racing 8x15	great mod idea what is the uion size and were did you get it?

01-31-2009, 05:35 PM	#22
TicTacOma UnderWater Monoploy Champ Joined: Dec 2007, #3840 Location: Columbia,SC Gender: Male Posts: 1,459 I'm Thinking... 2008 Double Cab Automatic 4.0 V-6	1 "union" (Toyota part# 9040451026) Reread the post,he has all the ingredients there for you. Doesn't get any easier. Unless you get Chris to do it and then all you have to do is hold the camera and the eyewash. __________________ Hand Me That Piano... My Name Is Chuck And I'm Addicted To Gas Station HotDogs...

02-01-2009, 05:32 AM	#23
firesniffer2001 Junior Member Joined: Jan 2009, #13156 Location: Spotsylvania,Va Gender: Male Posts: 4 1999 TRD Tacoma 1999 Access Cab Manual 3" toytec coils in front add a leaf in rear shocks on all corners 32x11.50 BFG on american racing 8x15	Thanks Thanks I missed it.

03-03-2009, 11:30 PM	#24
miked Junior Member Joined: May 2008, #6860 Location: oregon Posts: 3 2007 access cab 4x4 trd sport stock 2007 Access Cab Manual 4.0l stock	diff breather? Is it necessary to put teflon tape on the camary union?Also should it have any threads showing or should it tighten all the way down?Thanks!

04-22-2009, 12:04 PM	#25
thenrie Senior Member Joined: Sep 2007, #2582 Location: Stafford, VA Gender: Male Posts: 259 2000 Tacoma, SR5, TRD, 2.7L (LEV), 4wd, 5sp m 2000 Access Cab Manual 2.7L Magnaflow cat and cat-back exhaust, AFE Stage 2 cold-air intake system, 2.5" lift via Skyjacker leaf packs, Bilstein 5100s.	That looks like a lawn mower fuel filter. Look in the lawn and garden section of any hardware store, not in the automotive section. __________________ Tony Stafford, VA

06-15-2009, 01:37 PM	#26
Slick Nick Taco-addicted Joined: Jun 2009, #18476 Location: Vista, Ca Age: 25 Gender: Male Posts: 24 99 SR5 1999 Xtra Cab Manual 2rz Lots	good writeup __________________ GOD MADE TURBO LAG TO GIVE V-8'S A HEAD START, or some might say that its traction control! Drive it like you stole it...

07-22-2009, 08:44 PM	#27
STLharry Iron Oxide Sucks Joined: Oct 2008, #9899 Location: Vermont Age: 18 Gender: Guy Posts: 621 96 3RZ-FE 5spd 1996 Xtra Cab Manual 2.7L 4-banger Pre '98 3RZ "TRD Package": ARB Bull Bar, NHOR Custom rear tube bumper, Full Old Man Emu suspension: 881s, N91S(front) and N85(rear) shocks, CS019R leafs with NWOR greasable shackles/spring pins and OME hardware; IPF square headlights with VisionX white 55/65W H4 bulbs, IPF 968 DCG 100W fog lights, deckplate mod, Dif Breather Extension, 32x11.5R15 BFG T/A tires, Snug-fit Mini-truck cap, Flowmaster 40 Series Delta cat back with NHOR custom shackle bolt hangar	done. the only thing that was a PITA were the little 8mm bolts holding the splash guard at the top of the filler neck. On a 96, my guess is that theyve never been touched so they were rusted up pretty well. I broke 3 of 4 and had to drill them out, then i just replaced them with 10mm screws. Whatever works. __________________ Most of the world's problems can be solved with brute force and stupidity. Maybe that's the problem... Meet Maggie. Vehicle Type: Tacoma. Year: 1996. Description: Lightly Modified.

11-16-2009, 08:30 AM	#28
BTO Member Joined: Nov 2009, #25836 Location: California Gender: Male Posts: 50	What is the advantage to locating the filter/hose vent in the gas filler area?

11-16-2009, 10:29 AM	#30
BTO Member Joined: Nov 2009, #25836 Location: California Gender: Male Posts: 50	Hey Rob1, Yes, that location does make it high and out of any water but I was thinking it may be in the way? I could see myself banging it with a gas pump nozzle. Maybe the use of something smaller than the fuel filter like a tiny orifice or the original diff breather?

01-28-2010, 07:56 PM	#31
trdkamuri51o Junior Member Joined: Jan 2010, #29111 Gender: Male Posts: 27	going to do this in about 2 weeks.. toyota stock the part regularly?? and what did it cost you guys??

03-16-2010, 01:45 PM	#34
TKGN1 Junior Member Name: Todd Joined: Feb 2010, #30974 Location: College Station, TX Age: 37 Gender: Male Posts: 27 '98 SR5 4wd 1998 Access Cab Automatic V6	I did this mod last week and went with a simular set-up, but used these parts: 1/8" BSPP male to 1/8" NPT female from McMaster-Carr, example: http://www.mcmaster.com/#order-history/=68wc0a Remove your stock breather and screw this piece in place. Then get a 1/8" NPT male to 3/8" hose barb, example: http://www.mcmaster.com/#barbed-hose-fittings/=68weu2 screw this piece into the 1/8" NPT female fitting using a couple feet of 3/8" fuel line I ran it up to the fuel tank door as mentioned and slipped the hose onto the stock breather and clamped it on Just a side note, the fitting in the rearend is 1/8 BSPP (1/8-28) not to be confused with 1/8 NPT (1/8-27). They are very simular but you can't screw a 1/8 NPT into the breather hole in the axle. HTH __________________ 98 4wd Tacoma 05 Dodge Cummins 87 Buick Grand National

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