View Full Version : Rear End Vent
Has anyone used one of these?
http://www.ebay.com/itm/POLISHED-STAINLESS-STEEL-REAR-END-VENT-FITS-9-FORD-REARENDS-AND-OTHERS-/282294201570?hash=item41ba0bace2:g:CmsAAOSw-0xYVLzT&vxp=mtr
70129
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
07-10-2017, 09:50 PM
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/search/product.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
07-10-2017, 10:24 PM
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-88in-rear-axle-vent-bolt-8614.html
--Nathan
Boydster
07-11-2017, 03:00 AM
The Moser axle comes with a 1/4 NPT vent hole and a brass hose fitting. I bought the 4R3Z4022AA (http://www.americanmuscle.com/ford-88in-rear-axle-vent-bolt-8614.html) 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 (https://www.summitracing.com/parts/ear-916144erl) adapter from Earls / Summit and everything is good.
70133
The Moser axle comes with a 1/4 NPT vent hole and a brass hose fitting. I bought the 4R3Z4022AA (http://www.americanmuscle.com/ford-88in-rear-axle-vent-bolt-8614.html) 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 (https://www.summitracing.com/parts/ear-916144erl) adapter from Earls / Summit and everything is good.
70133
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.
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-88in-rear-axle-vent-bolt-8614.html
--Nathan
The Moser axle comes with a 1/4 NPT vent hole and a brass hose fitting. I bought the 4R3Z4022AA (http://www.americanmuscle.com/ford-88in-rear-axle-vent-bolt-8614.html) 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 (https://www.summitracing.com/parts/ear-916144erl) adapter from Earls / Summit and everything is good.
70133
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. :rolleyes:
silver_pilate
07-11-2017, 09:58 PM
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
07-11-2017, 10:57 PM
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. :rolleyes:
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
07-12-2017, 01:50 AM
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.