It seems like Detroit has gotten most of the issues with the DD15 fixed, and most shops are aware of the common issues. The pickup tube o-rings...
The big issue with the crankshaft has been mismatched bearings. There are two companies that supply Detroit with bearings and their sizes are...
Actually, the narrow rollers are comparable with the wide lobe cam. Also, the update is available for the 870, 871, 2250, and 2350.
