4:10 -vs - 3:73
#2
Inaccurate speedometer, lower gas mileage, faster shift points, lower top speed. Other than that, just replace your fluid with nice high quality stuff from GM, put on a new gasket and make sure to shim it up properly.
#6
I assume that you have the gas engine where the lower gearing can help as this engine develops peak HP at 3400 RPM. It would not be a good move with the diesel engine which develops maximum torque at 1600 RPM.
With the 6-speed transmission and the 4.11 gearing you do have the option of manually shifting into 5th and 6th overdrive gears to help the gas mileage once you get the entire rig up to highway speeds.
With the 6-speed transmission and the 4.11 gearing you do have the option of manually shifting into 5th and 6th overdrive gears to help the gas mileage once you get the entire rig up to highway speeds.