I think im gona do the gears on my car and would like to know what cars had these gears or where can i get them for my car?

I have a 1970 stock cutlass supreme holiday coupe,all stock.

 

If you have an Olds 12-bolt, there are no 3.73's available for that rear. Your choices would be 3.08, 3.23, 3.42 and 3.91. Used originals are around and Richmond makes new ones. Check with 507olds via PM. He will have anything you need.

 

Once you figure out what rear you have, you can call Summit for gears if you are doing it yourself or you can pm Monzaz or 507olds for help and pricing.

 

I have a 12 bolt 350 trans, im just looking to wake the car up a bit,engine is stock except for a true full dual exhaust going in soon, I would like to get some used gears in good condition rather than buying new unless i cant find them used out of a car at a junkyard,any compatability?

 

X2 on that. I've found Monzaz is easy to talk to and very knowledgable. Pricing is also very fair. Good luck with your project.

 

Gears for the 12-bolt O-axle are pricey,new or used,but yes,they can be found.Find out what gears are in there now,as you probably need a different carrier too.