I don't have a Chevy, but I do have a 6 speed. Get it if you can. This allows a manufacturer to give you a "power" rear axle to get started and a cruising final drive ratio for good economy. Also, you have more gears to slow you down going downhill.
__________________
Bill and Jane
2003 3124 KS, 2007 Tundra 4X4 TRD
Reese WDH, Prodigy
|