What type of gear was used in a 1990 f250 3/4 ton with a 4.9 engine?
I recently bought a 1990 f-250 with a 4.9 liter engine. 300 6 cylinder. It is geared really low. (too low) I am running about 3200 rpm at 65 mph and would at least like to get to 65 at 2200 to 2500. The tag on the rear end does not specify the ratio and I am very curious what type of gear I am running, and what type of gear I can replace it with to still get a fair amount of power to work with.