where are the gear ratio located for this truck

a simple way to chek is to jack up the car and put a chalk mark on the inside the tire at the 12 oclock position. do the same to the driveshaft. then as you rotate the tire, count the number of times the driveshaft turns in one revolution. compare that to the choices that are available. another way is to remove the rear cover and on the end of the pinion gear, there are numbers that tell you the teeth number of the ring and the number of the pinion. you divide these numbers and gives you the exact ratio. Roy

If you can provide the data from the door tag on the drivers door, I can cross reference it for you. There is a letter or number under "AXLE" on this tag that helps. Further, if it has not come off already in 17 years, there is a tag on the rear differential externally on the rear cover often that has the ratio listed in numbers.