leaky vent valve 9" ford
 

I have a 9" ford that I am periodically having to wipe the messy accumulated grease off the front passenger side. It runs down the rear end on onto the 4-link. No visible leak is evident, so it must be coming out of the little flip top vent valve. any one experience this and is there a fix?

Re: leaky vent valve 9" ford
 

I fixed mine by running a piece of rubber hose(after removing the little cap)up about 10",tie strap the hose to something and put a new vent valve in the end of the hose.the gm part # is 15771000 and it costs about $3.00
scott fifield

Re: leaky vent valve 9" ford
 

Great way to fix it but how much fluid do you have in the rear??? Possiblly overfilled it here??? Ya really do not need much more than a few PINTS not quarts but pints to work satisfactorily---Comp

Re: leaky vent valve 9" ford
 

I called my local GM dealer and they have that part # in stock, so I will put it on using a 3/8 hose.
Should the vent valve be mounted facing up or does it matter?
thanks for the help.

Re: leaky vent valve 9" ford
 

I think it should face up so if some fluid gets in the hose it runs back into the differential and not on the track
scott fifield

Re: leaky vent valve 9" ford
 

Ran the car a couple of weekends and no fluid leakage.. very nice fix.. thanks,