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Title: Did not work on 2001 Duramax LB7
Review: Only partial information is displayed and just does not function with my 2001 Duramax LB7. I tried customer support and they were very responsive but just could not make it work and all of a sudden they stopped communicating with me. I have seen this work on a Ford truck and it looked great, that's why I bought it. Too bad.
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