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Discussion Starter · #1 · (Edited)
i have a parts truck which is an 06 3.5L 4x4, i am currently driving an 04 3.5L 4x4 with a 4 speed. it so happens that my current engine is not operating properly and must be changed.

Through reading of theforums i have come to the conclusion that i should use my original wiring harness and fuel system...?

any insight or links would be appreciated !! thanks guys
 

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6-speed ???
 

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Discussion Starter · #4 ·
Haha my bad, the 6 I thought stood for number of gears.. I found out its the year. No need to change the rails?
The 06 has no return line and it's fuel pressure regulator is in the pump. Because I was going to use my original tank I figured it would be better to swap rails?
 
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