Author Topic: 1979 trans am wiring harnesses  (Read 1280 times)

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Offline shane79ta

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1979 trans am wiring harnesses
« on: July 22, 2012, 08:48:25 PM »
i have a 1979 ta that originaly had a 403 and we are putting a 400 in it. we are going to buy a engion harness for a 400 but will it connect and work with a 403 dash bulk head and if it does work what changes will i have to make. it will also have a four speed, so what will have to change to make the dash harness work.

Offline solargold

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Re: 1979 trans am wiring harnesses
« Reply #1 on: July 22, 2012, 10:55:23 PM »
I put a 78 dash harness from a 400 on my 79 with a 400. The only change I needed was the dimmer switch needed an extension to the steering column.
« Last Edit: July 22, 2012, 10:59:58 PM by solargold »
L8R G8R

Offline kc79ta

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Re: 1979 trans am wiring harnesses
« Reply #2 on: July 23, 2012, 04:51:40 PM »
I think all you should need is the neutral saftey switch jumper over to the clutch switch, and the back drive linkage for a 4 speed so your back up lights work along with your steering lock.
Keith