I remember reading about different block castings to look for and avoid. The casting # 53 stands out in my mind as a bad one. Can someone point me in the right direction to find the casting # on mine, as well as maybe some old threads or articles about which #'s are good or bad?

 

Here's a current thread on it.

https://www.dieseltruckresource.com/...threadid=52835

Hope you're not worried about your 2004 having the 53, it won't.


phox

 

I'm glad of that. Are some blocks in the current trucks better than others?