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Old 12-12-2017, 03:41 PM   #1
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5th Wheel Lift

I know that this is not a new question but it is a new issue for me. I would like to level out my fifth wheel and truck, make it a level plane. I have a 2018 Highland Ridge Light 5th wheel, LF318RLS towed by a 2017 Ford Super Duty F250 4X4. I had to raise the hitch height to keep the trailer from contacting the top of the tailgate exiting my driveway, not too much - actually the same height that I used towing my previous 5th wheel. On these Lights, the axle has already been ĎFlippedí so that is not the answer. I was considering the Lippert RV87220 Correct Track System since it claims to raise the suspension 2 inches but my trailer has many of the Correct Track components factory installed. I saw a video on the MORyde SRE4000 suspension system and it claims to raise the trailer 1 1/2 inches plus the better ride that their system offers. I am not sure what to do but I do need to raise the trailer up to cure my issues. I would appreciate opinions (within my budget)
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Old 12-12-2017, 04:30 PM   #2
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The best way is to add a sub-frame under the 5er. Unless you have a welder buddy then it's kinda spendy. But thats the best way.
How far out of level are you? And how much does the rear of the truck drop?
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Old 12-13-2017, 09:10 AM   #3
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Quote:
Originally Posted by Mahwah1 View Post
I am not sure what to do but I do need to raise the trailer up to cure my issues.
Hi, Mahwah1, and and to our campfire.

I suspect Cumminsfan is right. The best way is to add a 4' or so subframe under the current frame, then mount the spring hangers under that subframe. That requires a professional welding shop that knows what they're doing.

If that's too spendy, then maybe replace the spring shackles with longer and much stronger ones. But then you get into chassis engineering to be sure the new shackles are strong enough to handle the increased leverage of the longer shackles.
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Old 12-14-2017, 07:53 AM   #4
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Originally Posted by SmokeyWren View Post
Hi, Mahwah1, and and to our campfire.

I suspect Cumminsfan is right. The best way is to add a 4' or so subframe under the current frame, then mount the spring hangers under that subframe.
If that's too spendy, then maybe replace the spring shackles with longer and much stronger ones. But then you get into chassis engineering to be sure the new shackles are strong enough to handle the increased leverage of the longer shackles.
Hope you mean 4" and not 4'. Or if you meant length, then current spring perches dictate length. The benefit of a subframe is greater frame strength in the most critical frame area and added cross members for sideways rigidity.

Even with longer shackles, extra cross members become important to prevent the increased leverage from rolling the main frame rails.

I know you know all the details, my comments are really just clarification for the OP.
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Old 12-14-2017, 09:29 AM   #5
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Hope you mean 4" and not 4' .
Yeah, you caught me. I meant inches, not feet. A 4" thick I-beam would be about right. The standard 5.5" I-beam would probably be a bit much.

Quote:
Even with longer shackles, extra cross members become important to prevent the increased leverage from rolling the main frame rails.

I know you know all the details, my comments are really just clarification for the OP
Nah, I never even thought about adding cross members, but I'll bet you're right.
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Old 12-19-2017, 08:33 AM   #6
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It seems to run around $2000 to $3500 here to have a trailer lifted. They seem to get them done in around a week or two, but definitely do your research. I have two friends that have gone this route and theirs turned out amazing.
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