hey guys i went and got my car inspected and my rear diff is leaking fluids and im wondering what might be causing that and the easiest way to fix it thank you

 

Bad gasket

 

Whats involved with changing that out

 

 

Where is it leaking? Pinion seal? pinion nut/splines? Fill plug? Rear cover gasket? Left or right axle seal ?

 

I dont know all they said it was leaking and i need to fix all i know is that its cover in oil and grease

 

First you must find where it is leaking. The procedure for fixing a leak depends on where the leak is. Go find the leak and then come back for an answer.

 

like i said covered lol

 

Thats the pinion seal leaking...rebuild time!!!

-trust me...mine blew...(related causes...)

 

Looks like the pinion oil seal.. Common

 

 

I would clean the outside of the differential with some degreaser and check it in a couple of days to see where the leak is comming from.
ALSO!! Don't drive that car if it's low on differential oil! You would be wise to go ahead and top off the oil level so your differential doesn't lock up on you when going down the road.
You will total out your car in a ditch or worse.

 

ok so the pinion seal and where do you put the oil in on it

 

There should be a rubber fill plug on the differential cover. If not, then there is a fill plug bolt on the housing.
Add oil until it reaches the bottom of the fill hole and starts to run out.
A complete drain and fill is 3.5 pints of GL-5 gear lube (GM oil), SAE 80W or SAE 80W-90.
If you have a limited slip you will need the additive for that.
I did read somewhere on here that if you use synthetic gear oil you don't need the additive.

 

well guess when it warms up here i need to check it out cuz its freezing here

 

Looks like the pinion seal to me. Sometimes it's just a bad seal and sometimes it's a bad bearing. Other times it could just be the nut is backed off. When you get the chance to work on it come back and you can go over all of the options.

 

yea wont be till march when the major work. when it gets semi warm ill check it out