MasterTomos

iTrader: (15)

Starting preping my rear end for paint today (still in the car) and came across this long plastic "plug" sticking out of the top of passinger side of the differential. It's about an inch long, oddly shaped, and it pulls right out with your fingers. I don't believe it's a fill port, which I believe is located below the horizontal fin on the passenger side. Can anybody tell me what this is?


I can get pictures on in a bit if need be.

Regulator

iTrader: (7)

Maybe a vent port?

MasterTomos

iTrader: (15)

not my rear end, but this is simply showing location...

killagt

iTrader: (3)

what did you use to paint your rear end ?

NVR_SPDS

iTrader: (39)

Should be the vent line, if im not mistaken.

MasterTomos

iTrader: (15)

Haven't painted it yet (not my rear end pictured above), just masked everything off today and did rust remover/converter on the whole rear end and panhard rod. Have to wait 3 days before I can paint it w/aerosol, the bottle says

I have been taking a lot of pictures, I'll post up a thread on it

Others have confirmed, it is a vent port, thank you.

killagt

iTrader: (3)

what did you use to remove dust and rust ? u plant to paint over rear diff cover bolt ?

355z28

iTrader: (8)

It is the vent. its a must have.

killagt

iTrader: (3)

btw wat the vent does anyway ? can gear oil leak out of it ? im new to this too lol

Slvr00Bird

iTrader: (2)

It vents!!! duh!! LOL..

Your gears/gear oil get hot, so the vent brings the pressure to atmosphere inside the rear end.

killagt

iTrader: (3)

ok thank you, is every rear diff have that vent ?

SparkyJJO

iTrader: (11)

Yep.

Careful, if you overfill the rear, you can get a nice oily blast out that vent all over the bottom of the car. Ask me how I know. Hey, rustproofing, right?

MasterTomos

iTrader: (15)

Scotchbrite pads and screwdrivers/files to remove any big flakes, "sand" it down a little with the scotch rites to get it loosened up, clean with soap and water and dry w/ a towel, then apply the rust remover.

HavATampa

iTrader: (49)

Some put a nipple in the hole and add several feet of fuel hose to it with the vent on the end of the hose and attach it to a crossmember higher than the rear end. Put a loop in the hose and you won't have any drips or vapors on your newly painted housing.

MasterTomos

iTrader: (15)

Not a bad pointer, I may look into this, thank you