I just picked up a 1988-9 cummins dually 4wd, but the body was trashed. I have a body off of a 2wd that I’m going to be putting on it.
My questions are:
1. Can I remove the spacer off of the front end to make it narrower for non dually rims with out too much trouble with the lockin hubs?
2. What can be done about the rear end to do the same thing as the front, or would I need a new rear axel?

My goal is to make it a non dually truck, and where it's going, the dual tires will be torn apart.

 

i believe the rear axle will be fine, just blot up the normal wheel, the front, i think you may need to change the spindel, im not sure if they had the bolt on spacer like the 94+, but if they do just pull the spacer and bolt up the new wheel

 

You will need srw front hubs and rotors, the 94 and newer trucks didnt have man. locking hubs so the spacer worked for them.