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Discussion Starter #1
Hey guys, I was under my 66 coupe the other day and I came across this grommet underneath the car behind the rear seat with a hose that was completely just hanging by a bracket. Neither side was attached to anything. Anybody have a clue what this is supposed to be hooked up to? I can't find anything in the manual..thanks!
 

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It looks like the vent hose for the rear axle housing, there should be a nipple pointing up where the T block for the rear brake hose is mounted.
 

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Discussion Starter #3
Wow, thanks for the quick reply. I'll have to hop under my car after work today and see if that's correct. It sounds right to me...not much clearance under there at the time to look at that. What kind of effect would this have on driving while it's off? I'm sure it's been off for a while now while it's been on the road.
 

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Assuming the hose bard is open to the atmosphere nothing, unless you try and cross a flooded road. The vent hose is intended to prevent water from getting into the axle housing, you can guess what would happen if the gear oil would become contaminated with water. It has likely just dry rotted away and broken off at or near that barb.
 

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Picture 2 and 3 both show where on the rear end the hose should be attached. There is a short section of hose broken off with a crimp type clamp on it. Attach the new hose there.
 

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Looks like you have dual exhaust also, the fitting where the hose attaches is different between single and dual exhaust cars, on dual cars it moves the hose and rubber brake line out of the way of the exhaust. Can't tell which one you have on there, make sure your rubber brake line is away from the exhaust.
 
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