I noticed this morning that there was something hanging down from my differential. I went to investigate and noticed that it looked like a vent tube. But, it was attached to the driver's side axle housing. My question is, is this the diff. vent tube? and also, what should I do with it? where should I attach it to? THanks.


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2000 Silver F-150 XL Sport
Reg. Cab, Reg. Bed, 4.2L V6, 5-speed, 4x2

mods:
Tailgate lock, Generic bedliner, coyboy antenna ball
285/75r16 BFG AT ko (33.1x11.4)
Sony CD player, Blaunpunkt 5.25" speakers
Crimeguard alarm, Power locks

future:
1" coil spring spacer
new rims

dreaming:
true dual exhaust with flowmasters
RCD 5" lift, 315/75r16 Yokahama Geolander MT(34.9x12.6)
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Never let your schooling interfere with your education --Mark Twain

 

If you crawl under the truck you will notice a black plastic nipple right above the location of the tube in the truck bed frame. This vent hose hooks to it. Mine fell off too!

 

Broke mine when lifting the truck. Bought a new one and everything is OK.

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My Ride: 1998 F150 4x4 Lariat Supercab Flareside 5.4L in Oxford White/gold, ORP, Tow Package, 3.55 Gears.

Modifications:
Optima Red Top Battery
Split Fire Spark Plugs
K&N FIPK
Gibson Supertruck Exhaust System
Stepshield door sill protectors
Performance Accesories 3" Body Lift
Performance Accesories Lift Lips by Mountain Enterprises
Superlift 3" lift blocks
Gabriel Gas Ryder LT VST Shocks
Daystar Front Anti-sway Bar Polyurethane Bushings
Heckethorn Steering Stabilizer
35x12.5R16.5LT BFG All Terrain KO's
16.5x9.75 American Eagle 589's.
McGard Premium Wheel Locks

Photos at: http://www.communicomgroup.com/jmtruck

 

It does exactly what it seems like it would, vent the rear axle. It's also a great place for water to get into the axle

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2000 F150 XLT 4x4 Short Bed. Amazon Green, 5.4L, SuperCab, ORP, Tow Package, Sliding Rear Window, Electronic Shift, Keyless Entry, LT265-70-17 Tires, Clarion Pro Audio, Herculiner Bedliner, Air Silencer Removed.

1994 SVT Mustang Cobra. #1032 of 6009. Black coupe with black leather int., 3.73 rear, Bassani Exhaust, Aluminum D/S, Bridgestone RE-71 255-45-ZR17

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[This message has been edited by 2000 F150 4x4 (edited 03-04-2001).]

 

That's why the owners manual "suggests" you change the axle fluid if you have driven through water higher than the hubs.