I'm going with build it where it is easy to maintain and won't make you get rid of it. If the manual will be carefree I would go with that. Enjoy is what you want.
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So the whole reason I started this cummins swap was because the recently rebuilt 4l80E lost overdrive. I tried replacing sensors, tried to replace things like the brake switch etc etc. All of the potential fixes for the 93 overdrive issues. Ultimately got fed up with it, pulled the 6.5 out and put it in my red 94. Then deceided to cummins swap this 93. The trans always shifted well, just had issues with overdrive.
Well, upon pulling out the drivetrain I noticed they did not replace the internal harness with the upgraded harness when they rebuilt the trans.. So after thinking about it this morning, i came up with an idea. I'm half tempted to just replace that internal harness, drop the trans in there, and use my existing trans controller out of my 94 truck and see if upgrading that internal harness fixes the OD issue. If it fixes the issue and the trans passes the test, then I can upgrade the trans with a transgo shift kit and replace the converter with a 1200 stall billet converter. The rebuild can't even have 30k on it, so I'm tempted to at least try that.
If it doesn't work, I'm out the cost of the internal wiring harness... I already have the adapter plate anyways which I'd have to sell if I went manual.
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