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04-15-2014, 11:05 AM
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#1
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Junior Member
Join Date: Apr 2014
Location: Newcomerstown, Ohio
Posts: 17
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5th wheel clearance issue
We have a flagstaff 8528 IKWS on order. The over hang is 60" with the the trailer sitting level. Our tv is a 2014 f250 SD Fx4, with 57" bed rails at the rear. Will our wet pin weight of maybe 1600# push the suspension down enough to run the trailer level with proper clearance? The trailer axles are tor flex and run very close together . If we have to run nose high, 1 or 2" will the rear tires have to much weight?
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Retired Pipefitter
2014 F250 SD 4X4 SB 6.7L PSD
2013 21FBRS Micro Lite
2015 8528IKWS FW
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04-15-2014, 08:13 PM
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#2
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Senior Member
Join Date: Sep 2010
Posts: 409
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It will be just fine. It will probably squat you 2-4 in. 1-2" high in the front won't hurt anything. If it squats you 3" that will give you 6" clearance and ride level.
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2005 Ram 5.9 AT SB QC (Retired)
2010 Ram 6.7 G56 QC CC Aluminum flat/Leveled (Sold)
2008 Nitro Z9 towed by a 2015 Sanibel 3601 towed by a 2013 Ram 3500 SRW CCSB Cummins
2006 EZ GO 6" lift
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04-15-2014, 08:23 PM
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#3
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by transamz9
It will be just fine. It will probably squat you 2-4 in. 1-2" high in the front won't hurt anything. If it squats you 3" that will give you 6" clearance and ride level.
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IMO, if it squats him over 2" he needs something done to his suspension. My 1/2 T doesn't squat near that much.
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04-15-2014, 08:37 PM
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#4
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Senior Member
Join Date: Nov 2013
Location: Seaford, De
Posts: 2,377
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how can someone calculate the bed rail clearance when you don't know the specs on the hitch and pin box heights?
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David & Lynn 2014 Coachmen Chaparral Signature 327 RLKS 2016 Ford F350 Lariat CC Dually
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04-16-2014, 11:10 AM
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#5
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Junior Member
Join Date: Apr 2014
Location: Newcomerstown, Ohio
Posts: 17
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Quote:
Originally Posted by davel1971
how can someone calculate the bed rail clearance when you don't know the specs on the hitch and pin box heights?
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Our hitch is a Reese R16 round tube slider, the pin box a revolution. The pin height is 48", over hang 60". All measurements came from flag staff in Indiana.
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Retired Pipefitter
2014 F250 SD 4X4 SB 6.7L PSD
2013 21FBRS Micro Lite
2015 8528IKWS FW
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04-16-2014, 11:13 AM
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#6
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by davel1971
how can someone calculate the bed rail clearance when you don't know the specs on the hitch and pin box heights?
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You wait till you have the trailer then either adjust pin box and or the hitch to proper heights.
TURBS
Sabre owners united!
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04-16-2014, 11:43 AM
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#7
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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Quote:
Originally Posted by f1100turbo
You wait till you have the trailer then either adjust pin box and or the hitch to proper heights.
TURBS
Sabre owners united!
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You can't adjust a revolution pin box, maybe his hitch. What is the proper clearance to a bed rail? I really do not know. I have a F250 and his pin weight at 1600 lbs is less then mine at 1640 lbs. My truck will not squat at all hooked-up. I never measured mine to be honest but never had a problem either. That's why I don't want a new truck. Love that 6.0 engine. 125,000 miles knock on wood, But do maintenance by the book......
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04-16-2014, 12:15 PM
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#8
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by gljurczyk
You can't adjust a revolution pin box, maybe his hitch. What is the proper clearance to a bed rail? I really do not know. I have a F250 and his pin weight at 1600 lbs is less then mine at 1640 lbs. My truck will not squat at all hooked-up. I never measured mine to be honest but never had a problem either. That's why I don't want a new truck. Love that 6.0 engine. 125,000 miles knock on wood, But do maintenance by the book......
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I beg to differ
Looks like plenty of adjustment holes.
TURBS
Sabre owners united!
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04-16-2014, 12:22 PM
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#9
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Phat Phrog Stunt Team
Join Date: Apr 2012
Location: Tipp City, OH
Posts: 7,154
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Quote:
Originally Posted by OldCoot
IMO, if it squats him over 2" he needs something done to his suspension. My 1/2 T doesn't squat near that much.
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The first couple inches in 3/4 and 1 tons are soft so they don't beat you to death, and most have a higher attitude than 1/2 tons. My 3500 drops the same amount as my 2500 did, but from there it stiffens up a lot more. Besides, you probably have those airbags pumped up all the way!
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2016 Georgetown 364TS
2017 Jeep Rubicon Recon toad
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04-16-2014, 12:22 PM
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#10
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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Quote:
Originally Posted by thehitchman
We have a flagstaff 8528 IKWS on order. The over hang is 60" with the the trailer sitting level. Our tv is a 2014 f250 SD Fx4, with 57" bed rails at the rear. Will our wet pin weight of maybe 1600# push the suspension down enough to run the trailer level with proper clearance? The trailer axles are tor flex and run very close together . If we have to run nose high, 1 or 2" will the rear tires have to much weight?
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I just went outside and measured my rail height. It is 54" with the liner. I also just measured the drop of my pin from the underside of the trailer. If your unit comes with the revolution the drop from the pin plate to the bottom of the trailer is 9" lower. The revolution is at an angle down. So I don't see a problem for you at all, but I still do not know what clearence you should have. You can see what hitch I have left to right tilt is 2". I still don't understand what is the proper clearance is as you stated. It clears my bed just fine.
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Coachmen M/H
Concord
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04-16-2014, 12:44 PM
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#11
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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Quote:
Originally Posted by f1100turbo
I beg to differ
Looks like plenty of adjustment holes.
TURBS
Sabre owners united!
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Turbs the frames are built to the exact measurements to the revolution. You can not get in there to drop the pin box. You can not even put on a different pin box on because of the way it is boxed in. I think the boxed in area is only like 10 or 12". I remember someone wanted to add one of those air rides and couldn't do it because of the way lippard made the frame. I guess you can rip the whole thing out and reweld it. If you stick your hand up in the box you will feel the 90 degree angle of the box sitting on the rail braces. I tried to load a picture. That is an add on if you wanted it not OEM. I just went out and looked there are no wholes as your picture showed.
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Coachmen M/H
Concord
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04-16-2014, 01:01 PM
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#12
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Senior Member
Join Date: Jan 2013
Location: Byron Center, MI
Posts: 430
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The recommended spacing for the top of the bed rails to the bottom of a 5th wheel overhang is 6".
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2020 SOB - Jayco North Point 387RDFS
2013 Crusader 325RES Touring Edition - SOLD
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04-16-2014, 01:03 PM
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#13
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Member
Join Date: Feb 2013
Posts: 51
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Reese Revelution
I agree, there is no way to raise or lower the pin box. I have the 8528IKWS and had to modify my hitch to get the trailer level, fairly easy just a lot of weight to move around. Ended up with the trailer perfectly level and 61/2" bed rail clearance. Have a 550 with 19.5 wheels, so had to come down a lot, 13" above bed.
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04-16-2014, 01:13 PM
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#14
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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Quote:
Originally Posted by zs325RES
The recommended spacing for the top of the bed rails to the bottom of a 5th wheel overhang is 6".
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not that I doubt you but where does that figure come from? Just would like to know. Next time I hook up I'm going to measure it. I just never thought about it before it clears my bed rails and even on uneven ground. The trailer is perfectly level hooked -up. Thanks never new that. I have 3 wholes in my hitch 1 higher and 1 lower but it's level now I don't think I have 6" but maybe I do. Thanks for the info. I think I would rather pull level and lets say 4" then unlevel at 6" does that make sense.
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Coachmen M/H
Concord
2018 / 300 DSC
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04-16-2014, 01:27 PM
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#15
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Always Learning
Join Date: Nov 2011
Location: Four Corners, FL
Posts: 21,888
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Quote:
Originally Posted by gljurczyk
not that I doubt you but where does that figure come from? Just would like to know. Next time I hook up I'm going to measure it. I just never thought about it before it clears my bed rails and even on uneven ground. The trailer is perfectly level hooked -up. Thanks never new that. I have 3 wholes in my hitch 1 higher and 1 lower but it's level now I don't think I have 6" but maybe I do. Thanks for the info. I think I would rather pull level and lets say 4" then unlevel at 6" does that make sense.
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It seems to be what "they" generally say. Here's an article from eTrailer with an "expert"'s reply:
What is a Safe Distance Between Truck Bed Rails and the Underside of a 5th Wheel Camper Trailer Loft | etrailer.com
Quote:
Originally Posted by etrailer
Our recommendation for safe towing, no damage to truck bed rails or underside of trailer loft is 6 inches. If you have at least 6 inches of clearance with the trailer level you should be alright in all but the most severe pitch and roll situations, like entering a steep drive or going through a deep dip.
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Officially a SOB with a 2022 Jayco Precept 36C
Checkout my site for RVing tips, tricks, and info | Was a Fulltime Family for 5 years, now we're part-timing on long trips
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04-16-2014, 01:41 PM
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#16
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Phat Phrog Stunt Team
Join Date: Apr 2012
Location: Tipp City, OH
Posts: 7,154
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Doesn't the Equa-flex (if equipped) help transfer weight back to the unloaded (or not fully loaded) axle, as in the case of being out of level? I personally, would rather be a bit nose high, than to be tight in my rail clearance. I have 5 1/2" clearance, and have just "kissed" the bottom of 5er with the rear corner of truck.
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2016 Georgetown 364TS
2017 Jeep Rubicon Recon toad
Nights Camped 2019 - 17
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04-16-2014, 01:44 PM
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#17
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Always Learning
Join Date: Nov 2011
Location: Four Corners, FL
Posts: 21,888
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Quote:
Originally Posted by AquaMan
Doesn't the Equa-flex (if equipped) help transfer weight back to the unloaded (or not fully loaded) axle, as in the case of being out of level? I personally, would rather be a bit nose high, than to be tight in my rail clearance. I have 5 1/2" clearance, and have just "kissed" the bottom of 5er with the rear corner of truck.
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I don't know if our fifth wheel tows level or not (looks like it does when I walk up to it, but have never measured). But I do know that when I measured my axle weights- they were nearly identical. I do have the Equa-flex suspension.
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Officially a SOB with a 2022 Jayco Precept 36C
Checkout my site for RVing tips, tricks, and info | Was a Fulltime Family for 5 years, now we're part-timing on long trips
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04-16-2014, 02:10 PM
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#18
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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Quote:
Originally Posted by ependydad
I don't know if our fifth wheel tows level or not (looks like it does when I walk up to it, but have never measured). But I do know that when I measured my axle weights- they were nearly identical. I do have the Equa-flex suspension.
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I do understand both of you, but it also depends on the tilt of the hitch. I remember going around a State CG in Auburn Alabama. There was a camp road paved that had to be near 30 degrees or so and I said god I hope I don't tip over. But the hitch tilted and I didn't hit the rail with the bottom. That was the most extreme bank I ever drove on. I mean I crawled around it. I could here the hitch strain. lucky I was all right. I just looked again at the hitch I could raise that. I have two holes left above I thought 1 but it's 1 below and 2 above, but it never hits the bed and I really do not think it's 6" like the article say's. and it is level towing. So really I do not know which is more important as long as you don't hit the rail. I think level wins.
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Coachmen M/H
Concord
2018 / 300 DSC
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04-16-2014, 02:16 PM
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#19
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Always Learning
Join Date: Nov 2011
Location: Four Corners, FL
Posts: 21,888
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Quote:
Originally Posted by gljurczyk
I do understand both of you, but it also depends on the tilt of the hitch. I remember going around a State CG in Auburn Alabama. There was a camp road paved that had to be near 30 degrees or so and I said god I hope I don't tip over. But the hitch tilted and I didn't hit the rail with the bottom. That was the most extreme bank I ever drove on. I mean I crawled around it. I could here the hitch strain. lucky I was all right. I just looked again at the hitch I could raise that. I have two holes left above, but it never hits the bed and I really do not think it's 6" like the article say's. and it is level towing. So really I do not know which is more important as long as you don't hit the rail.
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I assume it's like any "rules" that get thrown about - there are exceptions to all of them and you won't necessarily have death, destruction or havoc rain down on you if you violate them.
I honestly have no idea how much space is between mine- yet another thing to add to my "to measure" list.
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Officially a SOB with a 2022 Jayco Precept 36C
Checkout my site for RVing tips, tricks, and info | Was a Fulltime Family for 5 years, now we're part-timing on long trips
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04-16-2014, 02:22 PM
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#20
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Camper Less Camping
Join Date: Apr 2012
Location: NW
Posts: 3,642
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Quote:
Originally Posted by gljurczyk
I do understand both of you, but it also depends on the tilt of the hitch. I remember going around a State CG in Auburn Alabama. There was a camp road paved that had to be near 30 degrees or so and I said god I hope I don't tip over. But the hitch tilted and I didn't hit the rail with the bottom. That was the most extreme bank I ever drove on. I mean I crawled around it. I could here the hitch strain. lucky I was all right. I just looked again at the hitch I could raise that. I have two holes left above I thought 1 but it's 1 below and 2 above, but it never hits the bed and I really do not think it's 6" like the article say's. and it is level towing. So really I do not know which is more important as long as you don't hit the rail. I think level wins.
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Yep...you lost me when you mentioned CG @ Auburn, AL...everything after that was discredited! LOL
Geaux Tigers!
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