3.42 to replace my 2.73's
 

I am looking at buying some 3.42s from Trev_SS but not sure they will work in my rear. he thinks they will..but i read some old posts in here saying that 3.42 are a series 3 carrier, and that the 2.73's are a series 2.

Any ideas? If i buy these, will they fit?

It needs to be the thick gear. You can run the 3.42 out of a 3 series carrier with a spacer, but it is extremely unreliable and difficult to adjust correctly.
I have run the Strange 3.42 thick gear for years with no problem.

I have the spacer setup ion my car. It was originally a 2.73 car! 3.42 gears been in almost 2 years with no problems! Its all about how installs and set them up, and break in!

Stock rear end with traction control
 

Hey, if any of you no longer need your old 2.73, hit me up. I am interested in one so let me know wass up. thanks