stock, as it came from the factory. it will be getting a dynotune at some point.

this is actually for a friend. the truck currently has lts, cat back, and a cai.
will it hold a cam too?

 

The sorry factory sunshell gears are usually the weakpoint in a heavy truck. One broke in my ex's 99 Burb and on my old 99 PU. Roughly at 60K and 110K These were just DD's that saw a little towing.... On the other hand my current 99 Z-71 has 198K on the factory tranny so go figure????