Also pull the heater A/C controls and the temp control module from the dash, as well as the condensor in front of the rad. The module may be mounted to the evaporator box under the dash, or the back of the glovebox or firewall - it depended on who put the A/C in. All these trucks had the A/C installed either dockside or dealer with a kit that was factory sourced, to comply with American content laws. 2nd gen kits were either Frigette or Lone Star.