bad bearing?

[vr4gasm]

okay guys i just installed my auburn LSD yesterday and not i have a grinding sound coming from the rear... the lsd is working fine but it grinds/howls could this be a bad set of bearings if so where can i get new ones?

[Meatyshells]

Re: bad bearing?

were they used? because i thought if you put used one's in they always make a skreaching sound

[vr4gasm]

Re: bad bearing?

yah it was and why do you say that? i also figured it out the brake pad was slightly touching the rotor not sure how but its gone now

[kala]

Re: bad bearing?

Did you put synthetic gear fluid in it? If yes, then you're in for trouble!



:)

[vr4gasm]

Re: bad bearing?

no i did not

[bah]

Re: bad bearing?

its always a good idea to replace the bearings when you do a rear swap, did you replace the races too, the ones that matched the bearings you put in there, and it could also be the gears were put back slightly differently so they are not within their previous wear pattern, several different things it could be

[XgunsmokeX]

Re: bad bearing?

Did you put synthetic gear fluid in it? If yes, then you're in for trouble!:)

y is synthetic bad?

[Meatyshells]

Re: bad bearing?

i think it's something to do with being too slick. Synthetic gear oil isnt very good for rear ends

[kala]

Re: bad bearing?

y is synthetic bad?

Auburn= Hypoid (regular) gear oil + GM gear additive (96-98 f-body)

Zexel Torsen= Synthetic gear oil (99-02 f-body)

I always learn the hard way ;)



:)

[98 3.8]

Re: bad bearing?

Auburn= Hypoid (regular) gear oil + GM gear additive (96-98 f-body)

Zexel Torsen= Synthetic gear oil (99-02 f-body)

I always learn the hard way ;)



:)

**** me. My Auburn started clicking a few days ago (1.5 weeks after install) and I have synthetic + additive. That's what the NAPA guy told me it called for. I hope I didn't ruin my auburn. :cry:

I guess the fluid gets changed tonight. :mad:

[kala]

Re: bad bearing?

Haha sorry man. I always learn things hard way too. I was pulling my hair out couple months ago just to find the right information. Then I went to my local GM dealership and had them look up the Master Book to find the correct info. Here's a post if you're curious what and how much stuff you have to buy. Please note I bought all my stuff from GM dealer.

http://forum.camarov6.com/showpost.p...5&postcount=19




:)

[98 3.8]

Re: bad bearing?

I'm a bit skeptical...does it HAVE to be GM additive? Why would synthetic ruin an Auburn?

My noise also might be my DS u joints--I had a bit of play in them the other day but I thought I had gotten rid of it. The car goes back up in the air tonight to find out.

[kala]

Re: bad bearing?

Read this thread. YOu will find answer :
http://forum.camarov6.com/showthread.php?t=79421
Btw, I don't think it have to be dealer stuff. I would suggest you to get dealer stuff but I think any other brand would work too as long as you buy the right viscosity. I spent more than $140 for mine but it was job done right.

A synthetic is too slippery for an auburn. If you have an auburn you need some friction for the diff to lock. Hence, you put in the additive in your fluid.

:)

[98 3.8]

Re: bad bearing?

But according to that statement (and other things I've heard), the additive will make synthetic suitable for the auburn.

I'm starting to think my clicking is the driveshaft yoke after all...

BTW: I did run synthetic WITHOUT the additive for a few miles. Once I put in the additive, I could instantly tell that the diff was locking correctly. Before the additive it would lock slowly/chatter.