Wheel Leak

[darr3239]

I'm new but can tell this is an outstanding forum, and I've learned tons of stuff. Kind of like being back in school again, but more fun!

Can someone give a guess as to what's leaking here? It looks like something common. I don't have access to the vehicle at the moment to get anything further.

Thanks much.

 

[Dock Rocker]

My guess is that it is the hub leaking. There is a planetary gear set in there.

 

[darr3239]

Easy fix?

 

[Dock Rocker]

It really depends on where it is leaking. It could be missing the cap (not very likely). It could be the seal where the CV plugs in (more likely). Neither are very difficult.

 

[darr3239]

Thanks much.

 

[Dock Rocker]

Here is an exploded view. The tm's have all the info you will need to troubleshoot and repair it.

 

[Retiredwarhorses]

More then likely it's the spindle seal...the upper halfshaft seals seep, they don't really leak, the outer spindle seal is where the real fluid is and it gets thrown all over the rim. But I replace both when I replace the spindle seal, as well as new spindle nut keyed washer. Have at times seen a loose or leaking drain plug on the geared hub.

 

[darr3239]

Ask and you shall receive! Thanks guys.

 

[papakb]

The repair entails removing the half-shaft and replacing the seal. It's not too difficult a job for an afternoon.

Kurt

 

[darr3239]

Are parts for HMMWVs generally available? Who are the best supplyers for small parts such as these?

 

[DatGuyC]

Ebay is your friend.

 

[darr3239]

Ebay is your friend.

Yes, but apparently not for those parts.

 

[DatGuyC]

You can find whole kits that have both input and output seals, a new lock washer, and the nylon seals that go on the fill/drain plugs. A quick search of "hmmwv hub seal kit" brings them up. Not sure if they are cheaper somewhere else, but that's where I found them.

 

[darr3239]

Got it. Those didn't show up when it searched before. I guess I put something in wrong.

Thanks.