5th wheel/frame rails

With my actual truck I can’t go more that 40t. The RGN is a 40t with 9’10” gooseneck and 14” king pin setup.

I’ll try to get a 36”H in case that I’ll use a flip neck (23-24” long).

 

Thank you for your advice!
I have 34” at the starting point with inflated airbags.

 

Best guys in USA.
Thank you!

 

I like the holes drilled through the upper flange, right above the warning label saying not to do exactly that!

 

Per DOT certified chassis mechanic:
On top flange, behind the the 5th wheel and on the lower flange behind the rearmost axle airbag, you can drill+G8 screw+1”washer on each side+torque at 250.

 

Looks like very nice work and not very prevalent need in our area due to 95% of lowboys being hydraulic, but I personally do not care for the plates bolted like that behind the fifth wheel, looks like a catching SOB if you miss a trailer just a bit or have to try and get back under a trailer that was dropped too low, but that's just my $.02

 

This is what they looked like on my other truck.

 

I don't have ramps on my truck and have no problem hooking up to the two mechanical necks we have. I do have ever have an over-air system on my air ride that is useful for more than just this procedure.

 

Pretty good work there!