Originally Posted by Garyp4951
I can't lower the hitch because the pinbox will hit the bed sides when turning sharp, so I guess I'm looking at installing a sub frame to raise the rv.
I should have known going to a lighter weight 5th wheel that it would sit lower for 1/2 ton trucks, and my 3/4 ram is pretty tall.
Thanks for any advice.
I'm new to 5th wheels and trucks--just beginning to look around. It sounds like your issue should be something I am conscious of as I go forward. I want to be certain understand the discussion here. May I ask for a little clarification?
If I understand correctly, if you lower the hitch height enough so as to level your fiver, the pin box of your fiver will hit the bed walls of your truck during sharp turns instead of passing over them and this is because your new fiver was built with lower truck bed walls in mind, lower than the bed walls of your current truck. Do I have that right?
I also gather from this thread that having a fiver close to level while towing is important.
If I understand things correctly, wow, I can see how this would be a thorny problem. I'm so sorry you find yourself in that unenviable position.
It would seem that either you need to lift the rear of your fifth wheel, lower the bed walls of your truck, somehow raise the height of your pin box, or some combination of these things. I am uncertain if any of these are practical or even possible.
Since your springs are already on top of your axles you cannot reposition them by moving them from underneath the axles to on top in order to raise the rear of your trailer. Would it be possible to create some sort of spacers and insert them between the springs and the axle to raise the rear of your fifth wheel? Just a thought. Then, I must wonder about raising your trailer's center of gravity too high so as to make it unruly while towing. You might also want to think about how raising your trailer might effect climbing the entry stairs.
At the same time I wonder as someone new to fifth wheels how I can be certain to avoid running into the same problem. I mean, I do not recall ever reading a specification provided for a fifth wheel that mentions the maximum height of a pick up truck bed wall in order to avoid collisions with the pin box while allowing for level towing.
How does a person make certain what the allowable bed wall height would be? Would it make sense to measure from the ground to the lowest spot of the pin box when the fifth wheel is level and compare that to the distance from the ground to the top of the truck's bed walls? How much clearance is needed between the two?
I think this would be valuable information for all fifth wheel wannabes, or I guess anybody shopping for a fifth wheel.