Pics or sources for reel mounts?

[MMI Enterprises 289]

Would like to see pics, links, or hear thoughts on mounting hose reels in the back of truck beds. Would really like to have some sort of Rapid Reel pivoting type installation to where the reel can be hidden down under bed level and but also come up and out away from vehicle enough for use. This would also allow pulling line out towards rear of a rig that pulls trailer if designed right. Utilizing the stake pockets or using a ladder rack might be ideal. Surely someone has seen such before.. What ya think?

[John Doherty 126]

I thought about getting one of those sliding beds and putting a reel on that, reel might be too high though to conceal entirely.

[BUNN 34]

You could hang them from the ceiling, if you have a cap...