Bionic Man wrote:
Also need to be concerned about the amount of clearance between the 5er and the truck bed.
I have never (noticed) being close to dragging the bottom of the trailer, but there have been many times where I was close to hitting the bed rails.
Another factor (for both issues) is how the TT or 5th is mounted on the axles - over or under.
Although it's incorrect terminology it's commonly called "flipping the axle/s".
"flipping" will raise the body of the trailer - resulting in additional ground clearance -and- (in the case of 5th wheels) clearance between the front of the 5th and the truck bed.
Keep your eyes open - pretty obvious when you see (especially) a TT that looks like it really 'sits high' - has a lot of ground clearance.
BTW - find a friend to do a test drive on your driveway.
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