I have no idea what the gear ratio is for my 95 Dodge 1500 pickup, But I bought the truck used and went from Conn to Alton bay. I put the cruise control on and set it for 65 mph and everybody including little ole ladies were passing me like I was stopped. But when I got to the gas station I was very pleased. I got 27 mpg. but my normal 3 and half hour ride was a four hour 15 minute ride. I found out later that my speedometer is 15 mph more than I actually was going. so instead of 65 I was doing 50. Oh this truck is automatic, with a 318 in it. and has that good ole paint peeling job that has been put on many vechicles.