I have a 2005 trailblazer with a 4.2l engine that runs great but the body is in poor condition. I also have a 2006 trailblazer with a 4.2l that has a bad engine. I want to put the 05 engine in the 2006. I have read that it can be done and I have read that it can not. I do not want to start tearing into in until I have a clear path to complete the swap. Please let know if you have done this swap and how you did it. Thanks for your input.