AIM industries used to sell 2WD lift kits, and someone has used a 88-99 2WD lift on our trucks...
Rear would just be a std 2.5" lift blocks
Need Bilstein 5100 extended shocks
For the Front:
88-98 Rough Country lift spindles
88-98 Raybestos PG ball joints
88-98 C2500 LD 6 lugs rotors and calipers
Moog 6454 HD Springs
73-87 C30 lower A-arms
73-87 C10 upper A-arm
You will need to ream out the spindle to fit the 73-87 Tie rod ends...
Other than that, your only option is using 1T coils in front and lift springs in the rear. How big a tire are you wanting to go to?