What is this hose? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sstone69 · 08-16-2011, 08:15 PM

Am not sure what this hose is for. It is connected to the top of the differential. What does it do? You can see that it has broken in two. The other half is fastened to one of the bed rails.

**Classic Heartbeat** · 08-16-2011, 08:17 PM

Rear end vent hose. WES

wilbilt · 08-16-2011, 09:06 PM

Vent hose, yes.
It is best if they are intact and run at least as high as the stock location.

Boat towed to lake, trailer backed into lake at the boat ramp. Hot diff contacts cold water, air inside contracts and creates suction. Broken vent hose sucks lake water into diff housing...you get the picture...

MagmaJct · 08-16-2011, 09:12 PM

Looks like an exhaust pipe to me!

Just kidding!

**70cst** · 08-16-2011, 10:05 PM

WES speaks words of wisdom

cdowns · 08-17-2011, 06:20 AM

i've always thought those vent hoses were buttugly so i always replaced them with a nice billet breater from speedway motors

**bigsnookmaster** · 08-17-2011, 08:43 AM

Quote:

Originally Posted by wilbilt

Vent hose, yes.
It is best if they are intact and run at least as high as the stock location.

Boat towed to lake, trailer backed into lake at the boat ramp. Hot diff contacts cold water, air inside contracts and creates suction. Broken vent hose sucks lake water into diff housing...you get the picture...

If you are backing your truck far enough down in the water that the rear end is completely submerged, you are at the wrong boat ramp! Lol

sstone69 · 08-17-2011, 08:51 AM

Thanks for the responses. I guess I had never noticed this vent hose on previous trucks I have owned, 66, 71 and 72. Sure do miss those trucks, but that was before this group existed and I was on my own here in the jungle.
I will replace that hose, it has just disintegrated when I touched it.
Thanks again !

eightbanger · 08-17-2011, 11:12 AM

Quote:

Originally Posted by cdowns

I've always thought those vent hoses were buttugly so i always replaced them with a nice billet breater from speedway motors

You have linky for said breather??
You can't just announce things and leave it at that you know Mr Downs...

cdowns · 08-17-2011, 11:18 AM

Quote:

Originally Posted by eightbanger

You have linky for said breather??
You can't just announce things and leave it at that you know Mr Downs...

get a free speedway motors catalogue lots of pictures of all sorts of great stuff

sstone69 · 08-17-2011, 05:02 PM

Can you use that breather hose to add more differential fluid?

Andy4639 · 08-17-2011, 05:47 PM

Here is the link for the free catalog.

https://www.speedwaymotors.com/ssl/catalogrequest.aspx

wilbilt · 08-17-2011, 06:36 PM

Quote:

Originally Posted by bigsnookmaster

If you are backing your truck far enough down in the water that the rear end is completely submerged, you are at the wrong boat ramp! Lol

The local lakes are full this year (until all that water goes down to So Cal), but it can get...interesting...in drought years.

trkfrk · 08-17-2011, 07:07 PM

Quote:

Originally Posted by Andy4639

Here is the link for the free catalog.

https://www.speedwaymotors.com/ssl/catalogrequest.aspx

Nice link! I ordered my catalog. Thanks

08-16-2011, 08:15 PM	#1
sstone69 Registered User Join Date: Oct 2010 Location: Tucker, GA Posts: 128	What is this hose? Am not sure what this hose is for. It is connected to the top of the differential. What does it do? You can see that it has broken in two. The other half is fastened to one of the bed rails. Attached Images __________________ "You gonna pull them pistols or whistle dixie ?"

08-16-2011, 08:17 PM	#2
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,766	Re: What is this hose? Rear end vent hose. WES __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

08-16-2011, 09:06 PM	#3
wilbilt Registered User Join Date: Aug 2011 Location: Northern California Posts: 189	Re: What is this hose? Vent hose, yes. It is best if they are intact and run at least as high as the stock location. Boat towed to lake, trailer backed into lake at the boat ramp. Hot diff contacts cold water, air inside contracts and creates suction. Broken vent hose sucks lake water into diff housing...you get the picture... __________________ 1971 GMC C2500 Custom Camper - Second Owner. 350/TH350, Dana 60 Rear.

08-16-2011, 09:12 PM	#4
MagmaJct Registered User Join Date: May 2008 Location: Mesa, AZ Posts: 281	Re: What is this hose? Looks like an exhaust pipe to me! Just kidding! __________________ I own 3 classic vehicles. 1971 LWB C10 Deluxe. 1974 VW Super Beetle. 1971 VW Fastback. The C10 and the Super Beetle run, the Fastback is just not there yet! Please visit my Super Beetle and Fastback profile on TheSamba.

08-16-2011, 10:05 PM	#5
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,373	Re: What is this hose? WES speaks words of wisdom __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

08-17-2011, 06:20 AM	#6
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: What is this hose? i've always thought those vent hoses were buttugly so i always replaced them with a nice billet breater from speedway motors __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

08-17-2011, 08:51 AM	#8
sstone69 Registered User Join Date: Oct 2010 Location: Tucker, GA Posts: 128	Re: What is this hose? Thanks for the responses. I guess I had never noticed this vent hose on previous trucks I have owned, 66, 71 and 72. Sure do miss those trucks, but that was before this group existed and I was on my own here in the jungle. I will replace that hose, it has just disintegrated when I touched it. Thanks again ! __________________ "You gonna pull them pistols or whistle dixie ?"

08-17-2011, 05:02 PM	#11
sstone69 Registered User Join Date: Oct 2010 Location: Tucker, GA Posts: 128	Re: What is this hose? Can you use that breather hose to add more differential fluid? __________________ "You gonna pull them pistols or whistle dixie ?"

08-17-2011, 05:47 PM	#12
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: What is this hose? Here is the link for the free catalog. https://www.speedwaymotors.com/ssl/catalogrequest.aspx __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.



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