I just purchased a 2005 duramax/allison 3500 silverado.

Are there any special break in rules as far as driving and towing is concerned.

this is my first diesel and I am enjoying it. :D

Do a search on "break in" and you will find a worth of knowledge.

I am a firm believer in "slow".

Look for method in the search.

Nice truck, treat it well, and it will serve you well.