How do I know which carrier my rear end is? I want to swap to 3.73 gears but I'm not sure which ones I need to get. Help is greatly appreciated!!!

 

from ls1tech

12. What is a series 2 or series 3 carrier, and what do I have?

A 2 series carrier is a car that came with 3.08s or lower from the factory (i.e. all of your 2.73 cars). A 3 series carrier is a car that came with 3.23s or higher. This is very important when you order new gears, as they will differ from 2 to 3 series carrier!

 

Here's the info you need, read:
Carriers

 

i love how that site has a link to the official miami dolphins website. miami ftw

 

I might be getting people mixed up but didnt you put a 3:42 posi rear in your car? and did I see a picture that looked like it blew up? I would be amazed if that Carrier was any good, Heck I would not be surpised the axle housing was damaged. If I am remembering it right.

You found someone to rebuild the rear?

 

I have a LSD 2.73 rear in the car now. The 3.42 rear is sitting in my shed lol.

 

Check the RPO codes and see what gears it had from the factory... 3.23 and higher is series three and below 3.23 is 2 I believe.