Its not really that difficult to wire up a universal type ignition switch that is dash mounted like the older trucks,usually all you have to do is unplug the old ignition switch and make new wires with male spade ends that will plug into the original plug in the harness and attach them at the appropriate terminal on the new switch--I have a wiring diagram that may be helpful if you need to know which wire does what,it has a breakdown of the ignition switch in it.I saw this done at a local boneyard when they wanted to start a GM truck to see if the motor was any good,but had no keys and didnt want to trash the steering colum--beats running new wires everywhere.You can probably figure out which wire does what by the color code,like big pink to the HEI,Big red wire is batt+,purple wire engages solenoid,etc. /forums/images/graemlins/crazy.gif