EduardoRonaldo7

Would a differential off a 4th generation camaro or firebird fit my 1990 3rd Gen camaro ?

sofakingdom

iTrader: (1)

Not sure what you are asking here; those are 2 terms that mean the same thing.

That's a bit clearer, although not all the way:

A 4th gen differential (the carrier, inside the housing, that the ring gear bolts to) will fit your car.

If you mean a whole 4th gen rear axle, then it will "fit", but it's about 1-5/8" wider on each side, which will make the tires stick out past the fenders and look real stoooopid (among other disadvantages). But if you put 4th gen or Vette wheels on it, or at least ones with that offset instead of the stock 3rd gen (older model) offset, then it all bolts right up.

big gear head

Yea, limited slip and posi are the same thing.


Exactly what are you wanting to do? You are going to have to be much more specific in your question to get an accurate answer.

mmadden55

You want a helical gear rear end like the 4 th gen torsen for your 3rd gen? It will fit in your diff but you will need 28 spline axles if you do not have them, or alternatively use a 4th gen rear that will bolt in as mentioned above. 98 and up 4th gen v8 cars had the Torsen rear. Or you could buy a trutrac which is also a helical gear LSD like the Torsen.

Night rider327

iTrader: (13)

As others have said.. Posi and limited slip are the same thing. A lot of new comers will call an open rear "limited slip" but that is wrong!

Limited slip is what it is, but over the years each company has coined their own name for it.
Chevy called the limited slip a Positraction which got shortened to Posi,
Chrysler called theirs the sure grip,
Packard twin traction,
AMC twin grip,
Dana trak lok,
Olds anti spin
Pontiac safe-T-track
Ford Equa Lock and Traction Lok

novaderrik

i disagree about the "looking stoooooopid" part: my car looks badass and mean as hell with the '02 rear end in it with GTA's on it..

sofakingdom

iTrader: (1)

I guess that's a matter of opinion.

To me, that looks POSEUR, and makes me laugh. Kinda like putting a wing on the rear deck of a front-wheel-drive econobox. Butt hay... to each his own.

novaderrik

just doing the rear axle swap with no other changes made the car feel more stable in corners at speed, which i would attribute to the wider track width in the back. it's possible that the locking differential might have changed things a bit compared to the old open diff, but i think it was more a matter of track width.

regarding looks: it would look extra super mean if i was to ever find some 10" wide rims with 2" more backspacing than the GTA's have to fill in the wheelwell..

Ty92Z

iTrader: (11)

I just have to ask, what does POSEUR mean?

UltRoadWarrior9

I'll assume your fingers are busted up on your latest project and can't search the net... It's French and losely translated means posturing to gain attention with "nothing under the hood"...

From Dictionary.com:
" [poh-zur; French paw-zœr]

noun, plural poseurs
[poh-zurz; French paw-zœr] (Show IPA) 1. a person who attempts to impress others by assuming or affecting a manner, degree of elegance, sentiment, etc., other than his or her true one."

UltRoadWarrior9

I added bold so the OP could see the point from sofa's earlier post...

Also, the OP may want to try searching the following on google or ixquick: "4th gen diff site:www.thirdgen.org/forums". TGO has a great wealth of information and active members. It's amazing!

Ty92Z

iTrader: (11)

Appreciate the sarcasm. Actually they are busted up from working on a VW Passat. I gotcha, a poser in the English language. Thought it may be an acronym for something because of the capitalization. Sorry to the OP for asking an off topic question in his thread. Back to topic!

Ron U.S.M.C.

For most of us when it comes to adding a LSD = Limited Slip Differential = what many call a "Posi". (As far as the term goes there is only one LSD that is actually named "Posi" that's in production and I have it. Made by Eaton called the Eaton Posi.) = http://www.eaton.com/Eaton/ProductsS...posi/index.htm
Anyway, the list is =

4th gen complete rear end in good condition
or
9 Bolt Rear end
or
a complete rebuild of the 10 Bolt with the best parts available $$
or
a 9" or a 12 Bolt. $$$
Something to that affect
If your going to be pushing some "power" and using sticky tires at the track the only real choice is the larger 9" ,12 Bolt , etc.

sofakingdom

iTrader: (1)

It's kinda similar to what they call in Texas, "big hat no cattle".

EduardoRonaldo7

Let's just say that when I burn out only one tire rotates , my friend told me I can have his stock "gears" fTom his 97 firebird. But I don't know if they'll fit or if that would help my cause, I bought the car for drag racing purposes, and it launches very weak he said changing to those gear would be a great up grade but, I also wanted to go from drum brakes to disc brakes therefore I was just wondering if I could just fit the whOle differential rather than just the gears
.. thanks everyone, I'm new to American muscle, (and I can't really get help from my friend non more because he left for the army basic training he won't be back till next year, but we hope to race each other as soon as he gets back) thanks for all the help

big gear head

What gear do you have now, and what gear does your friend have that he wants to give you?

OrangeBird

iTrader: (1)

Your gonna need a bigger boat .....