I have a 2004 32' Mobile Suites GVW 14,000 lbs. I have swapped the original King pin box with a Flexaire. Currently the front of the 5th wheel is 4.5" higher than the rear from the ground. It appears that I can raise the King pin box two inches higher than it currently is which would bring the front and rear closer to even. However if I do that there will be only 5 5/8" bolts securing the King pin box instead of the 6 that the original King pin box had. Are 5 bolts adequate?
# of bolts holding King pin box
- Thread starter Glh1
- Start date
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Rene T
Site Team
The most important thing before you go too far with this is how much clearance are you going to have between the bottom of the RV and the top of the truck bed rails. At a minimum, it has to be at least 5" but 6" is preferred.
I'm not a engineer but if it's designed to have 6 bolts, than that's what it should have IMHO. I'm sure they've designed it with a safety facture but I would want to take the chance.
I'm not a engineer but if it's designed to have 6 bolts, than that's what it should have IMHO. I'm sure they've designed it with a safety facture but I would want to take the chance.
Rene T
Site Team
Contact the factory for their opinion. I'll bet I know what they'll say.
I'd stick with the six bolts. Most 5th wheel hitches are adjustable up and down. Maybe raise the pin as much as you can utilizing all bolts, and then lowering the hitch in the truck, maintaining the 5 1/2" to 6" clearance between trailer and truck bed. If more is needed, quite a few trailers have adjustable spring hangers that would allow a couple inches of rise to the trailer. If you don't have them trailer shops can install them fairly reasonably.
Hope this helps.
Hope this helps.
Rene T
Site Team
Glh1 said:
Five bolts per side?
Rene T
Site Team
Glh1 said:
You're originals post is confusing then. It sounded like you were only going to have 5 bolts holding the entire pin box.
