here is my question, chevy rear end corpret 10 bolt 8.5 inch 2.73 ratio 41-15 teeth, want to go lower, BUT not to low to not be able to take some freeway trips, looking in jeg,s cat. 3.73 or 4.10 seem middle of the road.not somthing i do, really never did, so I could use some advice here THANK YOU.