Rear Axle/diff Leaking And Paint Peeling On '07?

[adz55]

I have an '07 Sierra with 18k miles and I just noticed the diff is all rusted, the paint has peeled off, and it looks like the fill plug has been leaking slightly. I haven't abused this thing, it's been used 95% for highway driving. Do you think GM will fix this for me under warranty?

[jcgilpin]

Take it in there, worst they can say is nope.

 

I have an '07 Sierra with 18k miles and I just noticed the diff is all rusted, the paint has peeled off, and it looks like the fill plug has been leaking slightly. I haven't abused this thing, it's been used 95% for highway driving. Do you think GM will fix this for me under warranty?

[adz55]

I live quite a ways away from the dealer so I'd prefer to know before I make the effort.

[68haywagon]

They will probably top off the diff and tighten the plug. I wouldn't expect much with the peeling paint.

 

Mike

[Tsmith]

Their painting on the rearend lives a lot to be desired.

[dlewis1111]

Get the rear end coated with some mud and let it dry.....you wont even notice the peeling paint!

 

Seriously though, GM rear ends on every truck that I have bought have come from the factory with a coat of "rust" protection. What do your lower control arms look like?

[adz55]

 

Here's a crappy cell phone pic.

[07.5_Z71]

Yea that is def. not normal, on my previous truck my differential cover gasket leaked, they changed the gasket under warranty. My rear axle on it was also looking a little less than desired and the mechanic put a nice coat of black spray paint on it for me, actually lasted for a while. Yours is way worse than mine was though. When I bought my new truck I did actually see a few vehicles with rear ends that were already rusting and paint peeling, needless to say I didn't buy any of those. It's worth a try, I would think they could help you out somehow.

 

 

Here's a crappy cell phone pic.

[adz55]

Think it's possible that the gears were set up wrong and have been running hot?

[Dmas]

it looks like the paint is peeling off cause there has been overheating, if you are still under warranty I will take it to the dealer to have it checked out.

[adz55]

Yeah, that's what I'm going to push with the dealer.

[jrrod2004]

damn, yours looks like it is DECADES old. mine has a few spots here and there and that is with 40K on the clock.

[adz55]

damn, yours looks like it is DECADES old. mine has a few spots here and there and that is with 40K on the clock.

 

Yeah, I bought it in late December of 2007 so I've only had it for a little over a year and a half.

[adz55]

I forgot to update y'all; the dealer replaced the cover with a new one under warranty. It's nice and purty now.

[ColoradoSkiCountry]

So ya got new fluid and a new cover. Not bad! Did they say everything looked ok in it?