Yes,
In order to use the ZQ8 steering box you will have to pull off the 2WD pitman arm that comes on it (the ZQ8 option only comes on 2WD trucks), and then bolt on a 4WD pitman arm (a MOOG arm or one from NAPA which appears to be the same as the MOOG arm). You will have to rent a pitman arm puller in order to do this as the pitman arm is tightened onto a tapered & splined shaft that is a booger to get off!! The steering box casting itself is the same on a 2WD & 4WD truck (only the pitman arm is different between the two). Of course, the ZQ8 option has the faster 12:1 ratio when compared to the normal 2WD & 4WD steering boxes. In order to identify any truck that has the ZQ8 option code steering box just look in the glove box on the tag that lists all of the code numbers that the truck came with, and if the ZQ8 code number is on the tag then the truck has the steering box you want. An even easier way to tell is if the truck has a factory installed rear sway bar, then it is one with the ZQ8 option.