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How to R&R 72 Chevy Ignition switchREMOVAL and REPLACEMENT: 1) Take a small pin - or paper clip and place it into the small hole next to the key hole - with the key in the ignition press the pin in and turn the key to the LEFT until it pops out 2) remove the outer cylinder (there are two) one on the dash and one behind the dash, by taking a large screw driver and catching one of the notches - turning counter clockwise (left) until the entire cylinder and switch comes apart

3) BEFORE your disconnect the terminals from the rear of the switch make note which one goes to which terminal (there should be four to five)Then replace the switch and replug the terminals in the order they came off (hence the note to mark which is which) one thing I didn't do, so now I am looking for the schematic and not having any luck - NOTE to self - ALWAYS make note of wires before unplugging. Good Luck it's pretty easy IF you remember to mark your wires.

Special Note: IF YOU DO NOT put the cyclinders back on in order the way you removed them, the key lock will not fit in back into the dash cylinder - Trust me, I did this - and then you have either a dangling switch or you have to use the pin again and start over. Good Luck LBB90210

Good answer! It worked just like you described. Too bad about your wires ... Maybe this will help:Purple to SolPink to IgnRed to BattBrown to AccLgt Brown to G1

If you need to know what connection they go to on the switch, then I can tell you what each blade is or maybe post a picture of it.

Good Luck

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Q: How do you remove replace igniton switch on a 1972 Chevy pickup?
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