Ok. So the truck is in my garage right now with out the axle in the right side. I pulled the axle out since my neighbor is a mechanic and i told him about the problem and he said that if the seal came back out then it was possible that the axle was bent or something. So i went and purchase both of them since yall said, "if you do one side, do the other one too because sometimes it causes the problem to shift over to the other side". Anyways, so i purchase both of them and this morning i got to work and pulled out the right rear axle. So after i pulled the gear oil out and to the cover off of the ball or pumpkin on the differential, it smelled burnt. So i put it in neutral and started to rotate the gears in their to see if anything was damage or anything was grinned off or chip. Everything thing seemed ok. SO i pulled that C ring and i pulled the axle out with the seal and bearings. I pulled out the new one and inspected it and everything looked the same. So i started rubbing my fingers over by the are where the bearings and seal is wrapped around the axle and compared it with the new one and the original one that was on the truck. The only different thing that i notice on mine was that it was smooth except at a spot, it felt a bit rough or like a line that was barely dipped round it. So i looked at the bearings and they felt the same and looked the same just that they did look worn. So i decided to slide the new bearings in to see if it was the right ones and i softly tapped it in and it fit. So when i pulled the bearings back out, i added a pit of force to pull it out. So i called the neighbor over the phone and talked to him what i have done and what he told me he thought the problem was, that to me it was like if on the new axle and the old one, it was exactly the same. And i told him about the bearings and that how they went in and they came back out. He told me that the bearings go in, they should come out that easily and of they were then the problem was in the differential casing it self and maybe that was the problem which was causing the pressure on the oil to get through and pop the seal out causing fluid to fly everywhere and making the drum cover HOT. So he said i needed to get the whole differential new. Once he said that, i started thinking, "Probably he dont know and maybe it could be something simple thats not worth more than 50 bucks and amd going around spending more than 500 bucks... So i went and returned everything and got my money back. SInce the manager at Advance Auto parts is a good friend of mine, i asked him what he thought the problem was. He told me, "GM vehicles of that model uses 2 gear olds that GM specifically recommends on their trucks. I dont know if only on trucks or also for SUVs because it shows me here that for that year and model, all u need is 75-90 or 80-90 full synthetic gear oil". WHen i heard that, it through me off because i replaced that differential main rear seal gasket and the only gear oil i added in their was 75-90 full synthetic. So i told him if it was true that the bearings shouldnt come off when pulled by hand with a bit of force? He said, "Well on that, it should be supper tight were no oil goes through but it should stay on their with out be loose where it wiggles because the oil needs to be able to go through the outside part of bearings a little bit". So thats when i got even more confused. He told me to go get the Vin number of my truck and look on a manuel exactly what kind of gear oil should be on that because GM recommended this gear oil that prevents friction inside of the differential case where the gears go.
Sorry for the book but im just getting so confused that i dont want to go out spending all this money when the problem is something minor that could be fix with less than 100 bucks.
What do yall think about all this and do yall have anything to add to this or what yall think it would be. I just want to get this done the right way. and if their is another gear oil or additive i should have added in there when i replaced that main gasket that i didnt add, then that could have cause the problem to that...
MAJOR HELP... Hope i havent got anyone mad or anything because i am ver thankful that we have people like SunLitComet that can take time off their personal time to help others... and everyone else that has been helping as well.
would be in order. Royal purple is fine as long as it is certifed to the same specs as fluid needed. A month probably won't hurt but when you refill it run the truck a bit to make sure you diluted the old stuff as much as possible and change it again a month from now. Call yourself good.
