fitting 2001 Northern Lite on 2015 F350 Super Duty

[ntlost]

Probably old topic but looking for guidance. My 2001 Northlite 10.2 is coming off my '96 7.3 and on to a new to me 2015 Ford Super Duty. Basic measurement indicates the bed is going to have a lift? I would like any comments on this issue or some direction to info sources.
Thanks.

Ntlost

[ntlost]

My old set up with the 96 gave me about 4 to 5 inches, which was perfect since I still take my rig into "questionable" locations far from the tarmac.

[Reddog1]

Over the years I have played with the clearance over the cab. I have gone from 2 inches to 8 inches, with the same truck and TC. I know in theory it makes a difference in drag, MPG, and so on. But my real life experience suggest it made so little difference I could not tell by seat of the pants driving. I think I did get a few more bugs, but with 6+ inches of clearance they were much easier to wash off from the TC wall. It was also much easier to wash the roof of my truck and use the storage area in the bed of the truck.

[SidecarFlip]

The guy that bought my old Lance has a 15 Superduty 4 door and we had to add a sheet of 3/4" plywood over the bed mat to get enough clearance between the cab marker lights and the bottom of the cabin over bed on the Lance. It was close without the plywood and just the mat, doable but very close (within 1"). The extra 3/4" was enough added clearance to allow for any cab / bed articulation without hitting the lights against the camper.

My feeling is close is good from a turbulence standpoint (a wide gap invites wind resistance but you do need some clearance. How much will be determined by your personal comfort zone.

[Kayteg1]

You have to measure it very carefully and still confirm the fitment before final drop.
With my Fleetwood on Fords I had very low clearance at truck roof lights (supercab).
Lance has lower sides, so I had to manufacture 2" platform on top of bed mat, what adds about 1/2"