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Engine Swap
Will a 2006 Duramax LBZ fit into a 2004 2500HD without any mods?- ray261
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- Replies: 2
- Forum: Repower / Transplant
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LB7: Shifting Problem
Hi, I have a 2004 2500HD (LB7) with a Bully Dog installed. Bully Dog was set to "Performance". It has 164,000 miles on it. The only thing I've ever done to the engine is replace the water pump. Recently, it began having problems shifting. If I depress the accelerator about 1/2 inch, it will...