Hello, I'm new to this forum. I was told about this forum from my father. I just purchased a new 2007 Silverado with the 6.6 Duramax and Allison 6 speed tranny.

I traded in my 2003 F-250 with the V10. I must say there is no comparison. the power in my diesel is through the roof.

I did my homework before my purchase and I must say it paid off.

 

Is the Classic with the 6.6 LBZ or the New 07.5 with the 6.6LMM.