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73' - 74' Javelin Dash Wiring Harness |
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AMX_1974 
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Joined: May/07/2021 Location: Illinois Status: Offline Points: 6 |
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 Topic: 73' - 74' Javelin Dash Wiring HarnessPosted: May/14/2021 at 2:45pm |
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I'm currently going through the dash wring harness in my 74' Javelin AMX, and it's been hacked up pretty good by the previous owner. I'm looking around either for a wiring diagram I can follow, or a replacement wiring harness. The only new wiring harness I can currently find is for a 73' Javelin. Are these two interchangeable? My car has a 120mph speedometer with the oil warning light, and the seatbelt interlock system is still intact. I also posted in the Wanted section if anyone had a true 74' dash wiring harness that they would part with, if the price is right. I'm pretty new to the forum, and any help would be greatly appreciated.
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mstrcrftr
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Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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Posted: May/14/2021 at 3:15pm |
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i have the wiring diagram you need.. please pm me your email address.
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7172AMX
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Joined: May/20/2015 Location: South Carolina Status: Offline Points: 124 |
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Posted: May/14/2021 at 3:45pm |
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74, interchangeable i believe not. Coincidentally today i started eyeing my salvage picked 30+ years ago harness. I have or had hopes of using it for my 72 std to rally pak upgrade. its way rough and since its a rally harness it's not a fit for your jav. 72 and 73 were the closest in mechanicals and someone correct me but 74 is its own animal. its got some odd looking connectors there. if you need any photos of anything shout out. I may sell for parts or Frankenstein it into my non-rally one day.
have a good one
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GoPacKman
71 JavAMX 401 T-10 354TG 72 JavSST 360 727 315TG 98 Jeep Cherokee Classic 4.0 4WD |
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304-dude
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Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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Posted: May/14/2021 at 4:02pm |
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Yes, the 74 has differences on the panel connections. Some of which can be corrected by swapping your connector and pinout locations with the replacement. Seems like the some connections get swapped to some previously unused areas for the 74, though the number of connections are the same that are used in the connectors.
I think the biggest issue is windshield wiper switch. The connector is not swappable with its connections. So for a no issues swap, a 74 harness needs to be in order. |
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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dltowers
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Joined: Dec/12/2012 Location: Friendswood, TX Status: Offline Points: 5827 |
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Posted: May/17/2021 at 12:41am |
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Original Owner, 1974 Javelin:
360ci,2v,727TC. Motorola Multiplex with 8-Track. G4 Plum exterior with 421Q Black Uganda Interior. Purchased on July 16, 1974 from Hooker AMC, Sherman, TX for $4500.20 |
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mramc
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Joined: Jul/12/2007 Location: United States Status: Offline Points: 3219 |
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Posted: May/18/2021 at 4:52pm |
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H&M makes new wring harness for AMC web site here: http://www.wiringharness.com/ . LRDaum
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LRDaum
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Lefthanded
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Joined: Jan/17/2021 Location: Michigan Status: Offline Points: 24 |
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Posted: Mar/19/2022 at 10:43am |
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does anyone have pictures of how the under dash wiring harness hangs and locations? I am installing a new harness in 72 AMX and have no clue how it is installed.
Edited by Lefthanded - Mar/19/2022 at 11:26am |
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304-dude
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Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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Posted: Mar/19/2022 at 11:19am |
A simple request by your own thread will work, instead of flooding with the same question in other older threads. Please state which year, they are different, being the move to bulkhead connection after 72. |
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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Lefthanded wrote: