I've been building my 1985 z/28 for about a year now and Im pretty sure it has the 3.23 rear end gears and it could really use more pep. I have a 305 with a big cam, 650cfm carb, summit racing headers, performer rpm intake mani, and a 5speed behind it. Im looking into 3.73 gears but I want to find something thats already built and together for a good price. maybe that doesn't exist, just trying to find something to bolt in and go. Thanks!

 

Where are you located? I have a 10 bolt for sale

 

California, small town in inyo county. How much are you selling it for?

 

I'm on the other side of the country, wouldn't be worth it

 

Changing the gears is arguably just about as easy as swapping the rear end. Pick which foolishness you want to deal with - R&P setup, or all the moving, lifting, and brake system foolishness associated with swapping the whole tube. Personally I would rather do the gear setup myself so I know it's done right. 10 bolt gears are CHEAP. Alternatively if you are going to swap the whole thing find a 99 to 01 fourth gen rear with the Torsen in it.

GD