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AKAMC
02-02-2009, 06:02 PM
ANyone know how similar a 76 and a 73 wiring harness might be? I picked up a 76 J20 that needs some work on the engine bay. Thinking I might pull the harness from my parts 73 J10 if it will plug into the bulkhead connector...
Tornado230
02-02-2009, 08:27 PM
Different ignition system, different alternator.
mdill
02-03-2009, 01:19 PM
Did the 73 even have the fuse block yet, or was it still all inline ?

Mike D.
ironroad29
02-03-2009, 02:18 PM
yea it has one, uses the round glass type.
Lindel
02-03-2009, 02:19 PM
The differences in the ignition can make it a real pain to try and adapt.
okjeep
02-03-2009, 02:51 PM
not if you swap out the distributer too...
Tornado230
02-03-2009, 03:05 PM
Easiest way is to get the harness from a '76.
Lindel
02-03-2009, 03:22 PM
Maybe I should have said ignition switch. Not even the same! They mount differently and the connections are different.
ironroad29
02-03-2009, 06:18 PM
my 73 has a reg gm style ignition switch on the column
Lindel
02-04-2009, 04:50 AM
Compare it to a later model switch, you'll see what I'm talking about.