Originally Posted by elcamino_bert
What kind of gears should I look into?
You should start by seeing what the rear gear is now. A lot depends on how you use the vehicle for one thing. If you do a lot of highway driving, you'd want to stay reasonable, like around 3.23-3.42 range. If you are more an around town driver, 3.73's would work well.
But that's why an OD AT works so well- you can have a steep rear gear, yet the OD will pull it right on down to a highway gear.