I have owned my 66' econoline cabover for about a year. Its brown with 70% of its body brown primer. I just replaced my ring gear and drive pinion with a bronco setup. It has less and bigger teeth. My theory is it's going to pull a lot harder and drive a bit slower. Forgive my lack of knowledge. I bought the truck with intent to learn mechanics and grow with my truck. It's simple and easily accessible to most parts of the motor. It's new a skill and I'm excited. Anyhow, anyone have any ideas or outcomes of this replacement?