i have the stock rear end out of my 82 camaro berlinetta with the 305 carb and i was wondering if anyone knows wut the specs on the rear axle is so i get the right diff

also does anyone know of wut posi/limited-slip diffs are better

 

What was original and what's in the car now may be two different things; however, here's some info that may help:

https://www.thirdgen.org/1982-chevy-camaro

JamesC

 

ok well it is the stock rear end so it would be the original and dude did u even read the page u linked it says nothing about the rear end specs

i did a litte reseach and im pretty sure its a gm 10 bolt 26 spline but i dont know if it would be 7.5 or 7.625 gear size so if anyone can confirm for me that would be great

 

Good luck, Dude.

JamesC

 

Yes, that's exactly what it is. Not really any other "specs" besides that.

 

Classic.

Well "big poppa", what info were you looking for exactly?
ad amke sure you get a POZI, and not a lim-slip! you want full POSI not just "limited" man!!!

To be perfectly correct, it's a 7.5" rear. But it's *exactly* the same in every way to a 7 5/8", all parts are the same and interchangeable etc.

 

wut is so different becasue i thought they were the same they are just diffs that transfer torque to the wheel with more traction unlike an open diff that puts must of the torque on the wheel with less traction and they arnt a spool and give even torque all the time

 

A full posi is a lockar rear end, and limited slip works off a centrifigal weight system which will spin both tires if they start to slip up to around 40 or so and then it opens up to power one wheel.

 

so it clicks around corners i thought posi was the same as limited slip

 

This is ugly. First, 'posi' is short for positraction. Positraction is General Motors terminology for a limited slip differential.


mcgarnicle
A full posi... doesn't mean anything. It is not a real thing. You referred to a LSD known as a Gov-lock. This differential uses springs and weights to couple the axles together. This lsd is not sought after in most applications due to its untimely failure.

A spool is technically not a differential, because both axles rotate together, thus there is not any difference between axle speeds.

A very simple understanding of a differential.

 

I just last night installed a nine bolt rear on my car. The one I have now is a 3.42, with the rear disk brakes. This is a great mod, and posi really adds alot.

I got mine out of a wrecked 87 GTA. You can pull any Nine bolt out of a third gen IROC or GTA, and it will have a posi and a 3.23 or a 3.42. The other option is a fourth gen rear, which will add two inches to either side of your axle. Either of these WILL bolt right up, and you WILL love yourself for.

All fourth gen Z28s, Trans Ams, and SSs are 3.23 or 3.42

(Did I miss anything?)

 

Yes, your gear ratios for the 9-bolt are incorrect. They are 3:27 & 3:45 and it is not a Posi but a Limited Slip . On the 4th gen rears 2:73 & 3:23 for the Auto and 3:42 for the 6sp manual.

 

Also not every 9-bolt has a limited slip and by this time a working limited slip.

 

Im a big fan of 2 way Limited Slips....maybe because I like to drift, but I feel my LS is better than my buddies posi as he cant keep a drift around a corner as his outside wheel (one with most traction while turning) always catches traction and throws his car side to side (due to traction hitting when car is still being turned).

So if your one that likes to go sideways and keep it, Limited Slip 2 way is what you want, if you want perfect launches and both tires burning rubber, Posi is what you want.

Thats all i got to say...PEACE!

 

Gladstoneiroc is right. Posi "is" limited slip. It's the same thing. Clicking around corners would be a locker which does not use clutches like all posi or limited slip units whether it be flat or cone type. Also, 7.5 and 7-5/8 do not "interchange". They are the same thing. There were not two different rear ends put in these cars one being 7.5 and one being 7-5/8. The only rear end has a 7.625 inch ring gear which is 7-5/8 and has shortened in nomenclature to 7.5 inch.