My 2001 Ram has always shifted a little bit early for my liking. I recently put bigger tires on it, and now it REALLY shifts too early for my liking. Is it safe to adjust this using the TV cable, is there a better/more proper way, or am I just stuck with it doing what it's doing? For what it's worth, the new tires make the speedometer off by right at 10%. If there's a way to fix that, it should also return my shift points the where they were. Thanks in advance for any advice...