gear oil coming out of rear axle vent tube d44 detroit

blondejoncherokee

NAXJA Member

NAXJA Member

Location

sacramento

• Mar 16, 2009

• #1

recently swapped in a newer used d44 rear with 4.88's and a full detroit. i noticed just today that there is gear oil coming out of the vent on the axle tube. is this bad, normal, or good?
did i simply overfill the diff?
my first assumption is a broken inner axle seal, but i thought the 44 rear was sealed by an outer seal after the outer bearing?
any ideas or is this common with detroits?

 

jeepboy381

NAXJA Forum User

Location

Gresham, Or

• Mar 16, 2009

• #2

You over filled it. You are right about th seals to, it only has outers.

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Mar 16, 2009

• #3

Actually,it is probably the same issue as with an ARB.The carrier restricts the oil from being able to drain back to the housing.The fix is to grind a releif groove in the housing.

 

techno1154

NAXJA Member

NAXJA Member

Location

In the islands

• Mar 16, 2009

• #4

RCP Phx said:

Actually,it is probably the same issue as with an ARB.The carrier restricts the oil from being able to drain back to the housing.The fix is to grind a releif groove in the housing.

Click to expand...

Where do you grind?

I had the same problem with my D44. I think it could have been caused by high oil level.

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Mar 16, 2009

• #5

techno1154 said:

Where do you grind?

I had the same problem with my D44. I think it could have been caused by high oil level.

Click to expand...

http://dedq15.mindfly.com/uploads/PDF/onlineManualsGuides/5-11.pdf

 

playwithit

NAXJA Forum User

Location

Fairfield, CA

• Mar 16, 2009

• #6

I was able to use a 7/16" drill bit with the carrier in. This was with the ARB. You may have just over filled the axle. Is your vent tube still on the drivers side axle tube? I was going to relocate the vent tube to the carrier housing, but just extended the tube to gas door. The hole drilled fixed my problems.
There's reference to the drain problem in the ARB manual. http://www.stu-offroad.com/axle/arb/RD116.pdf

 

playwithit

NAXJA Forum User

Location

Fairfield, CA

• Mar 16, 2009

• #7

RCP Phx beat me to it.

 

blondejoncherokee

NAXJA Member

NAXJA Member

Location

sacramento

• Mar 16, 2009

• #8

thanks guys you are very helpful! ill get started on this ....

 

blondejoncherokee

NAXJA Member

NAXJA Member

Location

sacramento

• Mar 17, 2009

• #9

one thing i was wondering
is it bad to have the gear oil coming out of the vent or just annoying?
cuz if its just annoying ill leave it alone cuz i have enough going on with the jeep right now...

 

techno1154

NAXJA Member

NAXJA Member

Location

In the islands

• Mar 17, 2009

• #10

Guys, this is great info. I will look at this on my next oil change. :cheers:

 

V

veedubshafer

NAXJA Forum User

Location

Palmerton PA

• Mar 17, 2009

• #11

the tree huggers aint gonna like it

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Mar 17, 2009

• #12

blondejoncherokee said:

one thing i was wondering
is it bad to have the gear oil coming out of the vent or just annoying?
cuz if its just annoying ill leave it alone cuz i have enough going on with the jeep right now...

Click to expand...

It can blow out your axle seals.

 

playwithit

NAXJA Forum User

Location

Fairfield, CA

• Mar 17, 2009

• #13

Check your fluid level. as long as you can reach the oil with your finger you should be safe. Not sure if you have an aftermarket cover. Biggest danger would be running low of gear oil. Your vent could be partially blocked increasing pressure.