Aamco was the last person to do my diff right when I took posession of the truck...what the hell was I thinking? At any rate they did a shoddy job and gooped on the sealer instead of doing a gasket so it had a slow leak as well as dino oil in it. You can see in the pics where it was leaking and rusting on the bottom. I cleaned it all up before I reinstalled the cover. Who knows if Aamco actually even opened it.
Just got done doing mine this evening and it appears I have a limited slip...I didnt think I did! Could someone verify this for me please.
I also found out I do, in fact have 3.55's as it is stamped right on the gear so that was easy.
Ended up using Mobil 1 instead of Royal Purple due to ease of availability and a bit better price. I used 75-90. I did NOT add the friction modifier as the Mobil 1 bottle says its already in there.
When I closed it up I decided to follow someones advice and use a Fel-Pro gasket which was under $5 at Advance Auto. I must say that was a good way to go vs. a bunch of goopy gasket maker crap.
I also decided to clean up the cover and paint it with some hammer paint. It was rusty as hell and looked pretty bad. I wanted to do it black but my black spray paint can clogged.
How hot does a rear diff get?
The paint I used said not to use it on items that go over 200 Deg. F....if it comes off I don't really care..it looks better for the time being.
I also replaced the vss/abs sensor as my speedo needle fluttered quite a bit and my ABS light was going on and off quite a bit even after I cleaned it up and reinstalled the original.
I was also surprised that my diff swallowed 3.75 bottles of fluid. The jacklegs @ AutoZone told me that I only needed three bottles...they even looked it up in the (obviously sucky) database. I had to run to the store to grab another...of course!
Front Diff here I come!
Here be the pics-