Rear axle breather thingies - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**FRENCHBLUE72** · 12-30-2005, 12:04 PM

Does anyone have the part# or replacemnt for the rear axle breather set-up .. Little plastic thing????

matthufham · 12-30-2005, 01:49 PM

what does it look like? all i had was a rubber hose about 2 feet long clogged with dirt, and i took it off and forgot where it came off, so i need to get one back on.

**FRENCHBLUE72** · 12-30-2005, 02:23 PM

Mine had a little piece of plastic in the end of the hose kinda had a little helmet type thingie on the top of it.. I f it stops raining I will get a pic of it..

lilred67 · 12-30-2005, 03:08 PM

i install a see-thru fuel filter on all my diff's vent tubes.it keeps dirt from getting in the diff and vents them also.

**FRENCHBLUE72** · 12-30-2005, 03:10 PM

What about water getting into them??? Fuel filters flow both directions correct???? Just wondering how well they would work on a mud truck..

phantom dually · 12-30-2005, 03:15 PM

I used a Polished vent that I got from summit. I had to tap the rear end for a 1/8" npt. Looks great though. May be some pics in my thread below.

**FRENCHBLUE72** · 12-30-2005, 03:36 PM

Is it the little line going into the crossmember? Any idea on what is is really for or is it really a breather???

matthufham · 12-30-2005, 04:45 PM

that's a brake line, how would i connect my breather, all i have is a hole in the differential. it's not threaded either.

see ten · 12-30-2005, 04:50 PM

Quote:

Originally Posted by FRENCHBLUE72

Does anyone have the part# or replacemnt for the rear axle breather set-up .. Little plastic thing????

In July of 99 the GM part # was 8640496 VENT. At least that is what's on the receipt from the last one I bought. The price then was $2.94

**FRENCHBLUE72** · 12-30-2005, 05:31 PM

tHANKS SEE-TEN

lilred67 · 12-30-2005, 05:57 PM

on a mud truck i would run the diff's vent hoses up in the cab!

stueber68 · 12-30-2005, 06:03 PM

You can use GM #15771000. They are about 2.50.

12-30-2005, 01:49 PM	#2
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	Re: Rear axle breather thingies what does it look like? all i had was a rubber hose about 2 feet long clogged with dirt, and i took it off and forgot where it came off, so i need to get one back on.

12-30-2005, 02:23 PM	#3
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,608	Re: Rear axle breather thingies Mine had a little piece of plastic in the end of the hose kinda had a little helmet type thingie on the top of it.. I f it stops raining I will get a pic of it.. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

12-30-2005, 03:08 PM	#4
lilred67 Senior Member Join Date: Mar 2005 Location: weatherford,texas Posts: 1,003	Re: Rear axle breather thingies i install a see-thru fuel filter on all my diff's vent tubes.it keeps dirt from getting in the diff and vents them also.

12-30-2005, 03:10 PM	#5
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,608	Re: Rear axle breather thingies What about water getting into them??? Fuel filters flow both directions correct???? Just wondering how well they would work on a mud truck.. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

12-30-2005, 03:15 PM	#6
phantom dually Project92 SWB stepside Join Date: Feb 2003 Location: Louisville KY Posts: 4,793	Re: Rear axle breather thingies I used a Polished vent that I got from summit. I had to tap the rear end for a 1/8" npt. Looks great though. May be some pics in my thread below. __________________ 92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448

12-30-2005, 12:04 PM	#1
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,608	Rear axle breather thingies Does anyone have the part# or replacemnt for the rear axle breather set-up .. Little plastic thing???? __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

12-30-2005, 03:36 PM	#7
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,608	Re: Rear axle breather thingies Is it the little line going into the crossmember? Any idea on what is is really for or is it really a breather??? Attached Images __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

12-30-2005, 04:45 PM	#8
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	Re: Rear axle breather thingies that's a brake line, how would i connect my breather, all i have is a hole in the differential. it's not threaded either. Last edited by matthufham; 12-30-2005 at 04:45 PM.

12-30-2005, 05:31 PM	#10
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,608	Re: Rear axle breather thingies tHANKS SEE-TEN __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

12-30-2005, 05:57 PM	#11
lilred67 Senior Member Join Date: Mar 2005 Location: weatherford,texas Posts: 1,003	Re: Rear axle breather thingies on a mud truck i would run the diff's vent hoses up in the cab!

12-30-2005, 06:03 PM	#12
stueber68 1968 C20 Vortec Beast Join Date: Jun 2005 Location: STILLWATER,OKLAHOMA Posts: 483	Re: Rear axle breather thingies You can use GM #15771000. They are about 2.50. __________________ Ugly or not it still kicks a**!



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