Been looking around locally at 3500 diesels. One thing I have noticed is all of them have 3:73 rear ends. Would have thought at least 3:92's or 4:10's. Seems weird but must be the times. I tow 6-8 times a year camping with my 35 foot 5th wheel (10,000 lbs) so guess 3:73's wouldn't be to bad. Or is this a bad idea?