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4D55 Performance Inc.

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About 4D55 Performance Inc.

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    ITD Member

Personal Information

  • Occupation:
    I am working on a Doctorate at Utah State University
  • Biography:
    I was born and raised in Mapleton Utah but I have lived in Cache Valley for the last 9 years.

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  1. Looking for info. I have a 1984 D-50 4x4 with a 4D55T, that my Dad left me when he passed away. I love the truck but need to rebuild the turbo. According to the numbers it is a TC05, but has an internal wastegate, so I'm assuming it must be a TD04. Any ideas?