Engine/Transmission (1994 - 1998) Rear Axle Seals

[Patriot Diesel]

what tools will i need to change out this seal... mine is leaking pretty bad

 

[bmoeller]

Jeff-



You'll need a 2 9/16" socket for the axle nuts. A seal driver (I made one from 2 short 2x4s, works good, even big seals used on semi trucks. ) Something to pull out the old seal from the hub (rolling head prybar or seal puller), RTV silicone to seal the axleshaft from the hub (Use some acetone or brake cleaner to remove all of the oil, or the RTV won't stick. ), a big hammer.

 

[Forrest]

I have a 96 Dana 80. Where's this vent hose you're talkin' about? Does this rear have one?

Same yr & size as mine. It's on the drivers side. There's a hose that runs from the top of the axel to the inside of the frame. They push a plastic fitting into the end of the hose. That's the breather/vent. The hose is attached to the frame rail by a black plastic fastner. Just pop it open, pull down the hose, pull out the plastic fitting & clean it really good. You'll see a couple grooves in it.





Forrest

 

[KYOUNG]

oil seal

the NAPA oil seal I used #62522SF superflex

 

[MHalloran]

Same yr & size as mine. It's on the drivers side. There's a hose that runs from the top of the axel to the inside of the frame. They push a plastic fitting into the end of the hose. That's the breather/vent. The hose is attached to the frame rail by a black plastic fastner. Just pop it open, pull down the hose, pull out the plastic fitting & clean it really good. You'll see a couple grooves in it.





Forrest

Forrest, thanks for the info. Have you Mag-Hytec 'd your 80 yet? Definitely is $$ well spent. Looks great too.

 

[Forrest]

Yep ... the 80 with the Mag-Hytec is HUGE.



Ck my Readers rig pics.

 

[Texas Diesel]

If you have multiple leaks and the vent is ok then tighten your axle nut 1/8 turn. Bet your leak will be gone for a long time.