1million mile isx15 never been touched - what now?

[dccustomfarms]

Thanks everyone for the information.

The truck is still fully mandated. Nothing has been removed or tuned. I was told the DPF has been replaced once and that's all. Not sure on the high-pressure pump.

Also, the truck has 336 rears behind an 18 speed.

I am leaning towards putting it in my shop and doing the rebuild. I have to get the cummins counter bore tool in order to do the mid stop. Mine is only set up to do the deck on caterpillars. Does anyone have a list of shim options for Cummins? I have the list and part numbers for cat only. What is spec for protrusion on the isx, and does the isx use a spacer plate?

As I start this process, I am sure that I will have many questions. I appreciate everyone's input.