Blown_WS6

I am eventually going to get a Strange Dana 60 with all the goodies but am spending all my money on the LS swap first but would like to rebuild my GM 10 bolt and strengthen it as much as possible before the upgrade. The car came from the factory with limited slip but now the diff has about 200k on that axle and the limited slip fails sometimes and only send power to one tire sometimes. Plus the pinion bearings are probably going out because I put in a new pinion seal when I upgraded all my suspension to UMI Performance and it still leaks indicating the bearings are sloppy.

I would like to rebuild the posi but need to know what kind it is and what kind of rebuild kit to purchase. Is it an Eaton unit? I don't think its the Auburn posi... They are 3.23 gears.

FYI: I'm a professional Mopar tech of over 20 years and have rebuilt tons of very difficult and complicated components so skills and tools aren't an issue. I'll buy any special tools I might need to do the posi rebuild as it is all a tax write off for me anyway. I've set up tons of diffs but never rebuilt a limited slip only replaced entire units.

sofakingdom

iTrader: (1)

Auburn
There was no alternative

Garbage
Save your money toward your REAL goal, leave that other trash alone

Blown_WS6

FFS why are these are the first posts on a legit question. Someone declaring something false and then asking why the OP is doing what they are doing. Its like a rule of internet forums. LOL.
irst of all, you are wrong. https://www.thirdgen.org/forums/tran...-10-bolts.html
The Eaton Gov-Loc also came in the thirdgen F-bodies
Second, I don't care about your OPINION and I didn't ask for it. I'm going to rebuild this diff while I wait for the money to buy the nice Strange S60.

John in RI

iTrader: (167)

You got a perfectly reasonable reply to your post and 100% accurate.

Your car has a 28 spline AUBURN "POSI" & it can't be rebuilt,..... only option is replacing the POSI Carrier. Since your familiar with this procedure you should also understand the expenses your facing while rebuilding a rear that can't handle the LS swap you are planing.

IIRC; the 'Gov-lock' POSI was only used in some early Thirdgens with 26 spline axles. The GOV-BOMB is widely known to be a worse 'POSI' than the 85-97 AUBURN.
So; Go ahead and try to rebuild your 28 spline Auburn is you wish - It's your time, $$ and effort being wasted. Just remember that while you didn't care to take good advise; you were - in fact - warned.

sofakingdom

iTrader: (1)

You have an Auburn.

It is GARBAGE. (which is why it's not working now)

Auburn doesn't sell replacement parts for it. Hasn't for DECADES, if they ever even did. I recall contacting them in the late 90s to get parts for a stock 96-97ish one; they had already discontinued all support for those.

This means you CANNOT "rebuild" it. You can put new bearings and whatnot all around it, but you CANNOT fix the wore-out frictions. It's cheeeeeep enough to replace bearings, and maybe not such a bad idea, but that's as far as you can go with it.

Doesn't matter what gears it has; it's still either a 2-series or a 3-series, and they would take the same "rebuild" parts, for the same year, regardless of that.

Doesn't have a Gov-Lock unless somebody put one in later on. Not saying that hasn't happened to it; only, it didn't come that way. AFAIK they quit subbing that POS for the Auburn when they couldn't get enough Auburns, after about 85. 84-back, maybe; 86-up, no.

Doesn't matter what some g00b posted on the Internet. It's a myth that you can't post anything if it's not true.

Doesn't matter whether you like the advice you get or not. Getting all butthurt about what you're told won't somehow change the realities of the situation.

If you REALLY want a S60, then save you pennies for a S60. EVERY PENNY you waste on that 10-bolt moves you ONE PENNY FARTHER from the S60. Doesn't matter how many other "projects" you have going on at the same time; it's simple arithmetic. So simple even I can figure it out.

If you've got something in your mind that you're just BOUND AND DETERMINED to do, then do it. Don't bother asking for advice, and then attacking people when they tell you what's wrong with what you're proposing. Especially not when they're RIGHT. Makes you look like an idiot. Better to keep your mouth shut and let people think you're a fool, than to open it and remove all doubt.

Have a nice day.

Blown_WS6

Its not "reasonable" nor accurate to first claim a superlative that ALL posi units are Auburns when in fact you even admitted they are NOT. It's also not "reasonable" to attack someone's motivations for doing a particular project when the OP never asked for anyone's opinion on the worth of doing so. If it was an Eaton unit, the rebuild kit is only $200. Plus the bearings and seals, that would be completely fine for a proper functioning posi rear end that would be used on the street and NOT the track even behind an LS. The power of the engine doesn't even matter when the 285/35R18 Pirelli PZeros can't hold to the pavement even behind my very modest 310hp L98 that is in there now.

I am COMPLETELY aware it would rocket the axles out on a launch on a prepped surface with a more powerful engine.

If it IS an Auburn unit, then you are correct, however, since it is exhibiting signs of an EATON unit that is wearing out like one tire being sent power and then a loud boom and then both tires being sent power, I thought I'd ask to see if someone knew for sure. Since you claimed "IIRC" you don't even sound 100% sure yourself.

Again, if it's an Auburn unit I'm not going to spend the money to make it work properly because the expense is too high. Only of it was a rebuildable Eaton unit. Also, I could sell a properly functioning, newly rebuilt rear end with 3.23 gears to another 3rdgen owner with an open diff 2.73 for example for an appropriate amount more than an old tired rear end that doesn't work right making the effort worth it.

so you see, both replies I've already gotten are worthless.

thanks for nothing. Lol

John in RI

iTrader: (167)

I included this info because it's POSSIBLE you might find one IF you have a pre-86 rear end in your car. A factory 91 rear end is an AUBURN with 28 Spline axles. Since it doesn't seem like you even know what your working with - good luck with your rear end rebuild.

P.S. Your Welcome

Blown_WS6

And so far, no one has told me anything I don't know. And the thing I'm ASKING about, none of you have any concrete conclusions on. You THINK they stopped subbing the Eaton for the Auburn but you don't KNOW.

i was hoping for a straight forward quick answer. "Its an Auburn. Dont bother." Which would have sufficed. You could have even added all the other information which i already knew for other readers in a respectful manner without attacking my motivations for doing so.

I guess I'll just have to pop the cover off and look at it myself and compare it to other pictures.

Blown_WS6

Thats the exact snarky, condescending attitude I'm talking about. Lol. I highly doubt you'd talk to people in person like that. But because you are hiding behind a computer with relative anonymity, you're acting like a total a**. Typical... lol

John in RI

iTrader: (167)

Your the fool ------>. We repeatedly told you exactly what you SHOULD have in your 91, I'll say it a third time since you seem to have missed it:


Accept your the tool here and move on.

Blown_WS6

*Insert Ron Burgundy "I Don't Believe You" .gif*

So because you have a crap attitude and come off like an a**. I'm not going to take your word for anything worth more than the dog turd you call your car.
I mean, according to your bio, you're running a 10 Bolt too so....

Also, I the correct word is *you're* not *your*.

QwkTrip

iTrader: (22)

Usually people just say, thank you.

OrangeBird

iTrader: (1)

So, , , two of the old guys who know these cars better than most (Sofa & John) gave you some tough love and now your gonna go getting all "Karen" on the board

A good point to remember here ;

Blown_WS6

Lol ok sure. Nice logical fallacy.

First of all, I was commenting on their attitude not the information. No one is going to listen to a bunch of grouchy a-holes and take their word for anything.
Second, I'm 42 and have been a member of this board back when it had a non tech forum that got too rowdy so it was shut down and restarted as 3rdgen.org by George Kawahie who has since passed away. The board has gone multiple iterations since then and I left to focus on family and career before coming back to occasionally comment or ask a question as I'm starting to work on my 1991 Formula I've had since 1996.
Third, a "Karen" would talk to a manager or report them to some sort of authority. I didn't do that. I just called them out on their sh*tty attitude.

Nothing any of you have said has refuted my comments about the tone and attitude of the responses. You sound like trolls and so I'll take your answers with as much authority as such.
I've worked professionally as a dealership technician for over 20 years and no one in the shop talks to anyone like that. If they did they'd get knocked in the teeth. You can make all the excuses in the world for acting like you have Aspergers Syndrome but in the end its just a lack of tact and social skills. *shrug*

OrangeBird

iTrader: (1)

sofakingdom

iTrader: (1)

Yeah, sucks to be you, doesn't it. You described yourself to a T. I've got SEVERAL decades on you, so I've had lots of opportunities to see fools make ... fools ... of themselves. As young as you are though, you still have a chance to grow up and learn how THE REAL WORLD works, yet. Maybe, when you grow up, if ever. That's up to you: you can either turn on your transmitter (mouth) and remain ignorant, or shut up and turn on your receiver (ears —>brain) and LEARN. Up to you.

Have a nice day.

DIGGLER

iTrader: (1)

with 200k, the clutches in the auburn are worn. sometimes you may get one wheel or the other to spin, or both. if it has been replaced in the past it could be several different things... maybe even a 9 bolt rear which would be a cone type limited slip. or a torsen which was available through slp for cheap back in the day. that is all speculation though.
on your oil leak, that does not point to "sloppy" bearings. thats not how those work. if the pinion nut was not tightened properly they will be loose, though.

you might be able to add some shims or something to the clutches if they dont look too bad. this would make up for the missing clutch material/thickness after 200k. auburn was selling repair parts for a 12 bolt unit 10-15 years ago, but the guys above seem to know that stuff was never offered for the 10 bolt units. if someone put a 9 bolt in there i dont think their diffs are rebuildable either.

QwkTrip

iTrader: (22)

He's going to get some quiet time if he keeps it up.

QwkTrip

iTrader: (22)

Also, I will no longer help you with any of your questions. Had it with all your bat **** crazy talk

Blown_WS6

keeps what up? Calling out unhelpful, rude condescendkng attitudes?

Blown_WS6

what is bat **** crazy? Arent you doing EXACTLY what you are accusing me of doing? Hmmmm

Blown_WS6

Thank you for the first helpful and polite response. I appreciate that

John in RI

iTrader: (167)

10 bolt ------> Yup; 4th Gen 98-02 Zexel Torsen POSI with 4.11's and LS brakes.



Screwing up your grammar while criticizing me over a typo is just - Hilarious !!!



And once again, Your Welcome,.............................feel free to come back for more advise anytime.

AaronIROCZ

iTrader: (5)

Weeeelllll this thread's usefulness went out the window right from the get go. I think we all know where this will go.....