Alright just notice a puddle of fluid under my rear axle.....so I drove it home and checked and yep fluid is leaking.....alright guys..... what is this and how bad is this problem:? If its bad break the news to me lightly....hahaha just looking for an idea so I dont go in to the garage blind........

 

your rear diff is leaking? not a big deal. go to a dealer, get a new cover,get some gear oil, and some brake cleaner. jack up the rear end. loosen the fill plug on the side of the pumpkin. pop off old cover, spray the brake cleaner in, wipe it out to get everything clean and excess fluid out. gasket the cover, put it back on, fill up with slightly under 2 quarts!

 

Where is the leak located? Under the "Pumpkin" or out by the brake backing plates... If it is near the "pumpkin" then it might be as hillbilly said just pop the cover and install a new gasket and fluid also make sure it is not the pinion seal at the front of the "pumpkin" then it would be a little more work...If the leak is at the backing plate then the axle seals need to be replaced...

 

Well these problems seem not so bad....since i now know the good end of it , whats the possibilites of the bad end of the problem? The Blazer is at the shop currently should know by the end of the day whats wrong with it

 

Here's some info for ya (since search isn't working): Rear Axle Service

Like stated above, if it is just leaking at the cover, it is a pretty easy fix. The other locations have been gone through previously as well.

We can walk you through any of this if you'd like.

 

speaking from experience here..if it is your rear diff leaking...and it gets low enough....your rear axle/ bearings won't get the lube they need and you WILL have to replace your whole rear axle....I mean that's worst case senario....but keep your eyes on it...and make sure there's enough fluid

 

Well its at the shop and I've been told it needs a new cover and gasket....so not a huge deal.....

 

thats not too bad then. Glad it wasnt something huge!