I am planning to track my Z51 with mag ride if/when my car eventually arrives. If my info is correct, the curb weight of a 1LT with Z51, with a full tank of gas is 3577 lbs. If I run with 1/2 a tank of gas, weight will drop to 3519 lbs. Existing Front Rims are 25.7 lbs. and the run flat...