1st Gen. Ram - All Topics Discussion for all Dodge Rams prior to 1994. This includes engine, drivetrain and non-drivetrain discussions. Anything prior to 1994 should go in here.

using a 92 2wd auto engine harness and dash harness in 91.5 4wd auto

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Old Jul 10, 2016 | 12:33 PM
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1991.5 mopar's Avatar
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using a 92 2wd auto engine harness and dash harness in 91.5 4wd auto

will this work? i know i will have to use the pcm out of the 92 because it will not have a voltage regulator. is there any other differences besides the 2wd not having a 4wd indicator light? if any one has a both harnesses out of a 91.5-93 4x4 auto they'd want to sell that would be great.
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Old Jul 10, 2016 | 01:06 PM
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So your using the engine AND dash harnesses from the 92? If so then just plug it in and go. Should be no issues that I can think of, other then the 4wd light, and possible the wiring connector plug on the VSS.
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Old Jul 10, 2016 | 01:27 PM
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I'd like to have a speedometer lol and a 92 harness will not work with the later model 91 pcm
Originally Posted by thrashingcows
So your using the engine AND dash harnesses from the 92? If so then just plug it in and go. Should be no issues that I can think of, other then the 4wd light, and possible the wiring connector plug on the VSS.
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