Don't need a box. It's a Weather Guard saddle box (over the rail). It's the deeper model with gull-wing doors, its in pretty good shape, still has the steel tray inside for stuff. both locks work great and are smooth to pop open the lids, has 2 keys, may need a rebuild on the shocks or new ones.
List price is $816
$250 obo picked up or trade for an Extang full-tilt tonneau cover. worse comes to worse I'll just use it.
I'll post a picture tomorrow but this is what it looks like
2004 Vermillion Red 4.0 4x4
3" Body Lift
2" Tuff Country AAL
33x12.5R15 BF Goodrich Mud Terrain KM2 on 15x10 Mickey Thompson Sidebiter II
& lots more