Yes, pretty common. I cut my lines and joined them to some new lines going up to a standalone cooler behind the grille. Lots of others have done the same. No problems since except I need to relocate my ambient air temp sensor which now reads a little high due to proximity.
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2005 Silver CRD Limited
245/75R16 GoodYear Duratracs
Fumoto drain | ProVent CCV Filter
Stanadyne FM100 filter | Cummins fuel pump
GDE Eco | SEGR | BoulderBars | FrankenLift | Frankenskids