[kpbrown31]

Prepping to LS swap (Yes, a sin I know ) my 66 Catalina Wagon this winter. This car still has the factory rear end (posi) in it with factory gears (2.56?). This will be a mild 6.0LS with headers, intake and a truck style cam for lower end torque, not peak horsepower. I only cruise the car. It will have a 4l80e transmission. I considered putting a lower gear ratio in the car to help more with low end (have to be able to smoke the tires ).

I know a lot of guys on here like the 3.08's but if you were going to have overdrive, would you push that to a 3.42? Just curious what those with overdrive have been satisfied with. I'll be honest, it's been a while since I've checked parts availability on the stock rear ends, so maybe I'll be surprised by what's out there.