Originally Posted by RentonRanger
I think you're talking about the computer code. If it's in the same place as mine (I have a 98) it should be under the hood at the very back in the center. A silver box with a white sticker on it that has the code for your truck's computer.
Thanks, you are helping me out tremendously. I now know my axle ratio and the # they are asking for! 3.73 axle.
Getting good mpg now, looking forward to some mods increasing it. 20 around town, up to 25.7 on the road, 2wd though.