Hi all,

So I have a 2007 Tahoe, has about 232K on it. I had the left front axle seal replaced back in May 2017, and its currently leaking again.

Some backstory, I had the right front axle seal replaced a little over a year ago, and that right front seal kept leaking and was needing replacement about 3 times (this shop has eaten the cost of each time the new seal needed replacing), after the last time it has stopped leaking, I believe they put some silicone in with the new seal to help prevent it from leaking, and so far it has not leaked again. I did have them check the vent line to make sure it wasn't blocked and it was not blocked, assuming they did check it as I requested.

So now I'm bringing the Tahoe back to them tomorrow for them to look at the issue, and the guy is saying that there is something else going on, theres no way that many seals go bad, he said if it was the right side leaking again he could chalk it up to installer error, but since its the left side leaking, he's saying maybe the aluminum axle housing may be out of round. Which makes sense as to why both sides axle seals needed replacing so often.

But my question is can the axle housing really go out of round over time?

I don't off road the vehicle at all; it was in an accident Dec. 2015 where my wife T-boned a car who made an illegal u-turn right in front of her on a two lane road; but the damage to the Tahoe wasn't too bad, just needed a new bumper and bumper support and new a/c condenser, they replaced the headlights and tow hooks, other car was totaled.

Thanks in advance!

Sorry mods, I posted this in the wrong section! Please close if you can, thanks!