youd have to change everything... cuz your car has 273's which means its a series 2 carrier, you couldnt use a factory 3xx replacment gear, you could go aftermarket as long as its for a car originally 2 series.... but to do the ENTIRE replacement... its not that hard my friend just fried his rear end last weekend at the track and it was out and new one in in like 2 hrs... go for it

 

youre going to see a big dif in acceleration.... nothing else will really be affected... itll jus be a little more torquey... BUT make sure you dont get a z28 with 323 gears, they did make those, they also made some with 273, DONT WASTE YOUR MONEY BE CAREFUL

 

So exactly which rear end do I wanna look for in order to get posi and rear disks?

 

if you need the posi unit you need the gears... someone had posted the code... the rear end rpo codes are GU? i believe GU2 was 273, Gu3 was 323 so find a GU4 or higher 93-02 z and youre good

 

Ebay? Junk yard? Craigslist?

 

junkyard

 

The gu4 will have the same gears that I have now? You said mine has 273 correct?

 

GU2 is 273, yours

 

That's what I thought. How bad will it rob my gas mileage if I throw a 3.23 rear end under my car?

 

dont go 323, waste of money 342... and youll be fine....
BUT ANYWAYS!!!!!!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!
I STOMPED ON MY BUDDIES NEW VET!!!