diff. vent?

[77f150 beast]

How critical is it that your front and rear diff vents work?Or can they just be plugged?Any advice on this will be appreciated thx

 

[RenegadeT]

They're there for a reason, I wouldnt plug the vents. Maybe so changes in pressure can escape thru the vent, not the seals opening up a leak path.

 

[77f150 beast]

yea i was thinkin more than likely it has something to do with heat...which makes pressure like you say i just didnt know if anyone else has done this.thx

 

[strange1]

if you plug them, they will blow oil past the seals.

 

[BrianGreen]

Put a fitting on it and run a rubber line up high, like your engine bay.

 

[77f150 beast]

thx for all the replies and tips.yea the one on the front is in the engine bay already..but on the back there is really not many good places to run it to.looks like im gonna hafto find somewhere for it though.ill figure something out tommorrow i reckon. thx again

 

[strange1]

top of a wheel well for the rear. or a long vent to under the hood.

 

[Spence]

double post

 

[Spence]

This is from trail gear. Not sure if anyone else makes these or not.

 

[Tim C]

Ive seen people zip tie a balloon to the vent to work like the bellows above, and I had a buddy with an xj that ran his rear line up to the gas door area so he didnt have to worry until water/mud was over the fuel filler.

Dont plug the vent though, on my 67 fairlane the vent on the 9" got plugged with rust over the years (the hole in the nipple was only drilled to about 1/16") and the axle seals started leaking after I would drive it for 10 miles or so. After I found the vent plugged and drilled it out to 5/16" the axle seals quit leaking and I never had to replace them

 

[77f150 beast]

Thats nice awspence i like that but its crazy that timc mentioned where the fuel filler hose and vent is bcause that is exactly where i run it to today.thx