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‘01 Silverado 2500HD 8.1/Allison 5sp xcab long bed
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3,985 Posts
No. The same computer has to be able to talk to the engine and the transmission.
 

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‘01 Silverado 2500HD 8.1/Allison 5sp xcab long bed
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3,985 Posts
You will probably be able to get the computer wired to the engine, but that’s not going to run right without some custom programming. What engine is the donor?
 
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