Carl a quik way to check the ratio if the tag is gone. Is to jack up 1 rear wheel, make a mark at the bottom of the tire. Put a mark on the drive shaft and turn the tire 2 full revolutions while counting how many times the drive shaft turns. 2 turns on the wheel little over 4 turns on the drive shaft means 4.10 or 41/2 turns on the drive shaft means 4.56 ect ect.I have a 93 3/4T 4wd with a 454 and the same tranny as that truck. I've never confirmed it, but it has either 4.10's or 4.56's.