[Mike C]

If you have 3.07 gears in your truck it is an OK cruiser on the road already. But if you go to an OD trans with a 2.74 (TH200 4R) or 3.06 (TH7000R4) first gear with 3.73 rear it will be a BLAST around town with significantly more torque to the wheels. Then the OD kicks in and you can cruise the highway again.

Again, my preference is the TH200 4R with it's better ratio spread and even more OD than the 700.

The primary thing that makes late model vehicles better all around performers more than anything else is more forward speeds with lower first gear and OD top gear. You will be amazed at how much more powerful an old carb'ed 350 will feel with gears and the OD trans.