Thinking about fitting some cheap black steel wheels, and run 245/60-15 in front and 275/60-15s in the rear. This truck will be built into a street/strip truck and I will more then likely take out the front drive axel.

 

I think they will for the 5x5" lug 2WD trucks/wheels.
Couldn't say for 4WD...isn't that 6 lug?

 

Yeah they'll fit.. I had 15's on my 97 Tahoe 4x4.

 

you should be fine but you may run into issues with the offset on certain rims...i don't know for sure but something to keep in mind, always try to test fit before laying down cash

 

I had 15" 80's K5 steel rally wheels on my 94 K1500, you have to get out the angle frinder and massage the front brakes, rear clears fine.