Ram Trucks 2015 3500 - Owner Manual - Manual (Page 738)

3. Place the jack and tool bracket assembly in the storage
position holding the jack by the jack turn-screw, slip
the jack and tools under the seat so that the bottom slot
engages into the fastener on the floor.
NOTE: Ensure that the jack and tool bracket assembly
slides into the front hold down location.
Jack And Tools Bracket Assembly Jack Hold Down Fastener
736 WHAT TO DO IN EMERGENCIES