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Just done some more searching. Seems there is a problem with the wiring set up. the end plug has to be reworked for turn signals, 4-ways, etc Jim did you have these issues? I jumped the gun on a tilt on e-bay before I looked at potential probs. pop
I don't think the wiring will be the same but it's just a matter of deciphering which pin does what. I have never found a diagram that matched my 73 but it was nothing a test light and some length of wire couldn't help figure out.
IIRC I removed the steering wheel to get to the turn signal switch and ign switch and once I figured out the path I could draw up a pin diagram that told me what wire went where. Have your diagram handy.
I have a 77' and a 78' steering column outside, out of the trucks right now. Let me go out tomorrow during daylight and I will tell you the differences and get pics.
The plugs are the same, although one additional pin on the 78' is used. (There are two unused on the 77'). They are interchangeable as far as that goes.
The Neutral Saftey Switch is mounted to the 77' unit and has a plug to connect under dash. The 78' unit does not have this switch or the hole in the steering column it uses. Although I think it would be rather easy to cut the steering column and mount the switch.
There is a plastic cover on the 78' unit and the steering shaft is uncovered on the 77'.
For the record, the 77' and 73' units are identical. I will post pics when I am at my computer later on.
Just done some more searching. Seems there is a problem with the wiring set up. the end plug has to be reworked for turn signals, 4-ways, etc Jim did you have these issues? I jumped the gun on a tilt on e-bay before I looked at potential probs. pop
There may have been a small change in the plug i don't remember as its been awhile . It had to have been easy or i could have not done it as auto electrical i fail at. I used an AOD transmission and the start switch on it is built in to the trany , just had to make some wiring changes there and splice in to the correct wires. The column I used all of the plastic trim that came with it and i did away with the metal column cover trim that fastened to the dash. Mine was easy but other transmissions might mean more changes. The old 73 steering wheel would not cancel out the turn signals , i used an 80s one .
Thanks for the input gang. GM4WALLS looking forward to the pics. I learn from pics. The written instructions do nothing for me. Show me and I learn... read to me and I am a sack full of hair ***** !! lol Pops
