Finally got the air bags installed in the truck. It's not on the road yet,, more work to do !!
Went with this for the front 11431099 1973-1991 GM C30 - CoolRide Front System
and in the rear
http://www.airassisted.ca/u2/metal-f...-brackets.html
With these bags
http://www.airassisted.ca/u2/air-bag...-1-2-port.html
Looking forward to getting it on the road to see how it rides and handles !!