They were the best except for the couple years they had a problem with a block gettin cracked. My dad has a 99 5.9L and its amazing. Duracrap and powerchoke are nothin.
Ah yea they sound pretty good. We have one getting a full rebuilt in the engine shop ATM. What machines are your ones out off? This is out of a 789, supposedly they are standard in 793 or something?