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Old 10-01-2020, 03:54 PM   #1
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Swapping allison 3060

Hello,

Have a few questions for ajyone who might have went down this road,

I am currently purchasing a allsion md3060 trans, tcm, pushbutton, wiring harness and flexplate to swap out my manual trans innmy freightliner fl60.

I was wondering besdies the stated parts if anyone had any insight or anything else I will need for the transmission swap.


Bus is 3126,
Fl60 is c7
I have computer to turn truck ecm to AT

Thank you all.
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Old 10-01-2020, 04:07 PM   #2
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Chassis: HDX/MVP ER
Engine: CAT 3126
What engine are you bolting this up to?
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Old 10-01-2020, 04:08 PM   #3
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What engine are you bolting this up to?
Sorry bus has 3126,

Bolting up to c7.

I have computer to turn on AT in c7 ecm.
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Old 10-01-2020, 06:59 PM   #4
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I'm confused. Is your engine a 3126 or a C7?
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Old 10-01-2020, 07:04 PM   #5
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My engine is a c7.
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Old 10-01-2020, 07:39 PM   #6
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Location: Northern Virginia
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Chassis: HDX/MVP ER
Engine: CAT 3126
So if I understand this correctly, you're taking the MD3060 out of a bus and slapping it into a box truck?

There could be capped off connectors in the original wiring harness, tucked up by the frame that would make this more of a plug and play deal.
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Old 10-01-2020, 07:47 PM   #7
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Out of a bus to my toter,
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Old 10-02-2020, 09:03 AM   #8
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Engine: DT466E-Md3060
Quote:
Originally Posted by B14h View Post
Hello,

Have a few questions for ajyone who might have went down this road,

I am currently purchasing a allsion md3060 trans, tcm, pushbutton, wiring harness and flexplate to swap out my manual trans innmy freightliner fl60.

I was wondering besdies the stated parts if anyone had any insight or anything else I will need for the transmission swap.


Bus is 3126,
Fl60 is c7
I have computer to turn truck ecm to AT

Thank you all.

I think you need the gas pedal too.
It sends signals to the tcm...
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Old 10-02-2020, 10:20 AM   #9
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Engine: DTA360 / MT643
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the TCM should gets its signals on a 3126 or C7 from the J1939 datalink.. the earlier cats used a special throttle TPS.. but later they went to the datalink method..


the gas pedal sends an electrical signal to the ECM to run the engine.. the engine computer in turn uses the datalink to send the TPS, engine load, kickdown, cruise info, etc over to the transmission
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