Which gears would you guys recommend for my car?? I'm pretty much between 3.42s and 3.73s... I have 2.73s and I'm looking to change them after I swap in a 12-bolt.

 

I personally would go to a 3.42 or 3.55 as you are running a supercharger and I noticed on my Trans am with a 3.73 and nitrous, I am running out of gear to fast. It all depends on what you intend to do with it. Street mostly or strip. Mine is for the street so If I where you, 3.42 or 3.55 but that is just me. I am sure others will say 3.73. On my other Trans am, I am running a supercharger and have 3.42 gears as well.

 

I had the 3.42's for years since they were stock. I like the 3.73's better, you feel more torque. A 3.55 gear (and 3.90) is available for the 12-bolt, but Moser and Strange don't offer that gear ratio with their rearends.

 

3.73's should put you right around the red line in 3rd gear in the 1/4 mile...that's what I would go with if it were me.

 

Right now she revs to 6500