Rear axle seals keep leaking

[95escahoe]

The rear axle seals on my Tahoe keep leaking, both have been done twice within the past 2 years, drive 10-12k miles a year only driven on pavement no offroad its just my DD, had the rear axle vent hose and the PVC like end piece replaced too thinking maybe that was causing this, is there anything else to look for? It goes down the road fine no issues or sounds the rear end was rebuilt around 3 years ago, thanks for the help.

 

[OR VietVet]

In all likelihood the axle shaft has a groove where the old seals rubbed and the new seals are in the same place and not making a good seal. You can get replacement axle bearing/seal assemblies that offset the new seal to a different location on the axle shaft for better sealing. Or you have axle bearings that are allowing the axle to float and beat up the seals and maybe the axle shafts need replaced. Hard to say without seeing but is likely the seal groove that I mentioned first.

 

[95escahoe]

In all likelihood the axle shaft has a groove where the old seals rubbed and the new seals are in the same place and not making a good seal. You can get replacement axle bearing/seal assemblies that offset the new seal to a different location on the axle shaft for better sealing. Or you have axle bearings that are allowing the axle to float and beat up the seals and maybe the axle shafts need replaced. Hard to say without seeing but is likely the seal groove that I mentioned first.

Thanks for the input, was thinking along those lines

 

[OR VietVet]

What's that old saying, "Great minds think alike."

 

[95escahoe]

What's that old saying, "Great minds think alike."

Lol yup

 

[95escahoe]

Update, got a better look at it, looks like its leaking under the saddle that holds the leaf to the rear end, gonna get it looked at tommrow and see what they say, im guessing its gonna need another rear end, cause welding may or may not work from what ive read

 

[SunlitComet]

Call me crazy but I don't see leakage from the axle. More like from the axle tube itself.

 

[95escahoe]

Call me crazy but I don't see leakage from the axle. More like from the axle tube itself.

Lol ya at first I thought it was the seal till I went under it and looked, found a used rearend for $485 gonna go look at it tommrow, hopefully get clean it up and paint it and put it on next week