gearvendor

truck is 2000 3/4 6.0 liter thinking about a gearvendor in it. how much will this help mileage, rpm's etc thanks also has anybody done this

I found a thread that talks about the GearVender and from what I can tell it seems to be a nice setup. Takes a little work to install it but worth it.
http://www.chevelles.com/forums/showthread.php?t=81001&goto=nextnewest

http://www.drivetrain.com/new_overdrive/GM4speedautomatic/overdrivegm4spdauto.html#Final%20Drive%20700

It seems that with the wider gear range you would get better Gas milage and better use of Torque and HP. I would think that this would be great for towing or hauling.

I think you could recover the price of the Gear Vender in about 2 years with Gas savings.