They have copper contact strips in them - the plastic housing cracks and make it contact / short - haven't seen one melt like that though ?
I have all the pieces new - also have some used assemblies
Might want a pad too as the originals shrink
Don
Click to view: 70-73 STEERING WHEEL HORN PAD, 2 SPOKE Item #D0AZ-3623
70-73 STEERING WHEEL HORN PAD, 2 SPOKE
Correct grain texture as original, black. Reproduction steering wheel pad. Price: $49.95
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Click to view: 70-73 STEERING WHEEL HORN SWITCH ASSEMBLY Item #D2AZ-13875
70-73 STEERING WHEEL HORN SWITCH ASSEMBLY
Two spoke steering wheel horn blow switch assembly. Two special pressure switches with connection terminals installed into black plastic frame. Reproduction. Price: $79.95
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Click to view: 70-73 STEERING WHEEL HORN SWITCH TRIM PLATE Item #D1ZZ-13932
70-73 STEERING WHEEL HORN SWITCH TRIM PLATE
Deluxe horn blow switch trim plate for 2 spoke steering wheel. Simulated wood grain trimmed plate. Replaces Ford part number D1ZZ13932. Reproduction. Price: $31.95
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Item #D1ZZ-13915
70-73 HORN SWITCH COVER, DELUXE
Exact reproduction deluxe horn vinyl switch cover for 2 spoke steering wheels. Correct grain texture. For use with woodgrain trim plate. Black rubber only. Emblem available separately. Price: $22.95
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