Gear Ratio.

2000 C3500 with a 4.10 rear end.

Does anybody know:

1. A web site that calculates gears ratio based on tires changes.
2. What is my new gear ratio is since I changed to 305X70X16.

Yes they rub on hard turns but who cares. You should see my jeep tires.

On my jeep they have almost rubbed the frame in half... :iceslolan


Thanks.