Rear End Vent

[Papa]

Has anyone used one of these?

http://www.ebay.com/itm/POLISHED-STA...xYVLzT&vxp=mtr

s-l225.jpg

[Shep]

Unless you're using a 9" rear, I'd be suspicious of the "fits most other models" statement. If you're using an 8.8" rear, you can get replacement vents from several sources. They won't be polished though!

[GoDadGo]

Papa,

I used the following Spectre Breather hose clamped to a NPT Barbed brass hose fitting that comes out of the top of my left axel tube:

https://www.spectreperformance.com/s...aspx?prod=3995

It's stainless steel mesh and the hose barb goes well up into the breather; however, I don't have pics of it to show you.

Steve

[silver_pilate]

Anyone know the typical size/thread of the fitting in the axle tubes on an 8.8? To clarify, I have a Moser 8.8 that doesn't have a fitting for the breather. Or should I just order and screw in one of these: http://www.americanmuscle.com/ford-8...bolt-8614.html

--Nathan

[Boydster]

The Moser axle comes with a 1/4 NPT vent hole and a brass hose fitting. I bought the 4R3Z4022AA vent from American Muscle, but it has a 7/16-20 (-4AN) thread.

Yes, the Moser vent hole is different from the standard 8.8. Remember, Moser uses bigger axle tubes.

Bought a 916144 adapter from Earls / Summit and everything is good.

axle vent installed.jpg

[Papa]

The Moser axle comes with a 1/4 NPT vent hole and a brass hose fitting. I bought the 4R3Z4022AA vent from American Muscle, but it has a 7/16-20 (-4AN) thread.

Yes, the Moser vent hole is different from the standard 8.8. Remember, Moser uses bigger axle tubes.

Bought a 916144 adapter from Earls / Summit and everything is good.

axle vent installed.jpg

Thanks Boyd! I'd seen your post at one time or another and couldn't find it. I ordered the same Earl's fitting in black and will use the polished vent. I didn't want to run a piece of tubing for the vent and this solution will work and look good. I suppose if I were going to track the car, the better solution would be something like Steve suggested, but for street use, I think I'll be fine.

[Papa]

Anyone know the typical size/thread of the fitting in the axle tubes on an 8.8? To clarify, I have a Moser 8.8 that doesn't have a fitting for the breather. Or should I just order and screw in one of these: http://www.americanmuscle.com/ford-8...bolt-8614.html

--Nathan

The Moser axle comes with a 1/4 NPT vent hole and a brass hose fitting. I bought the 4R3Z4022AA vent from American Muscle, but it has a 7/16-20 (-4AN) thread.

Yes, the Moser vent hole is different from the standard 8.8. Remember, Moser uses bigger axle tubes.

Bought a 916144 adapter from Earls / Summit and everything is good.

axle vent installed.jpg

It took some convincing myself to accept that my 1/2" wide opening on my Moser 8.8 is actually 1/4" NPT, but that is the case as the male 1/4" NPT o.d. is 0.504" -- totally intuitive.

[silver_pilate]

Thanks, guys. I ended up ordering one of these. I'll see if it works out.

https://m.summitracing.com/parts/SUM-E730300

--Nathan

[Gromit]

It took some convincing myself to accept that my 1/2" wide opening on my Moser 8.8 is actually 1/4" NPT, but that is the case as the male 1/4" NPT o.d. is 0.504" -- totally intuitive.

It is when you remember that NPT is a "pipe" designation and pipe is measured by the I.D. Nothing against the plumbers out there

Chris aka Gromit

[Boydster]

Thanks Boyd! I'd seen your post at one time or another and couldn't find it. I ordered the same Earl's fitting in black and will use the polished vent. I didn't want to run a piece of tubing for the vent and this solution will work and look good. I suppose if I were going to track the car, the better solution would be something like Steve suggested, but for street use, I think I'll be fine.

Factories have done it this way for many years. The TKO trannys have the same style vent mounted. I dont see an issue with it. Glad I could help.