4L60E to TH400

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08-24-2005, 08:22 PM

02' hawk

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4L60E to TH400

I have a 02' T/A that has a TH400 that is built with a trans brake. The problem i have is that the speedometer is WAY off. I noticed that there is an electrical output already installed in the tranny that will plug into the factory harness. What can i buy to program the computer to read right? Can the dealer do this?

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08-25-2005, 07:56 PM

Ragtop 99

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If you have HPT or LS1Edit you can easily change this. Is your mph way low? When i converted to an M6, mine read real low. I changed the gear ratio using Edit and now it is dead on.