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    LB7 Return Line Seals - Tightening them too tight?

    OK, I'm replacing my injectors on 2004 LB7. While putting on the return lines the torque is 12lbs, if I read correctly. When I tighten them the top seal breaks away from the bottom seal via the "stick" connector piece. Is this normal???? Or should they just be tightened enough prior to this part...
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    Can you identify this injector?

    I'll explain.......first of all, I bought them basically for core price. $400 for 4 "new" "reman" whatever..... injectors, that's core pricing. So I figured I could either trade them in and do my truck 1 side at a time or find some history on them to see if they are good or not. And if they...
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    Can you identify this injector?

    What makes you say that they are Pensacola Diesel?
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    Can you identify this injector?

    Did that.........that's why I am asking here :D
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    Can you identify this injector?

    Hey everybody, I finally got another Duramax. It's an 04 crewcab LB7 4x4. I bought it cheap needing injectors. So tonight I picked up a set of 4 new injectors of of craigslist. Has anyone ever bought any that look like these? If so, from where?