Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Trailer Towing and Tow Vehicles Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 05-23-2016, 09:39 AM   #29
Senior Member
 
Join Date: Aug 2015
Posts: 350
Quote:
Originally Posted by SmokeyWren View Post
Mounting the 5er hitch so the center of the kingpin is behind the rear axle is unacceptable. The furtherest back the center of the kingpin should be is centered over the rear axle. And 2" to 4" in front of the center of the rear axle is much, better for handling, especially handling during emergency conditions.

Way back when, 5er hitch installer instructions said the kingpin should be mounted 54" behind the back of the cab. That would allow the 102" wide luxury 5ers to jackknife without cab to trailer contact. But that required cab-to-axle (CA) of 57" or more. IOW, an 8' bed. Minimum was 48" behind the cab, which would allow a typical 96" wide 5er to jackknife. But pickups with shorty beds don't have 48" between the back of he cab and the center of the rear axle, so compromise was required for those city dudes that insisted on a shorty bed. Thus the slider hitch was born.
pretty sure he was talking about when the hitch slides back
__________________

__________________
0rion is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-23-2016, 09:45 AM   #30
Moderator Emeritus
 
SmokeyWren's Avatar


 
Join Date: Jun 2011
Location: Midland County, Texas
Posts: 3,326
Quote:
Originally Posted by 0rion View Post
pretty sure he was talking about when the hitch slides back
I hope so.
__________________

__________________
SmokeyWren is offline   Reply With Quote
Old 05-23-2016, 10:55 AM   #31
Senior Member
 
Join Date: May 2005
Location: Bryan, Texas
Posts: 611
"Mounting the 5er hitch so the center of the kingpin is behind the rear axle is unacceptable"


Yup. A couple years ago, I helped a buddy figure out his issue. He got a 2500 long bed Dodge CTD, and then a fairly large toy hauler. After the first pull he said it pulled terrible. Felt like it was bouncing everywhere real bad and just didn't feel like everyone said a 5'er should feel. My thoughts were he's not an experienced trailer puller anyway. When they had thier TT the wife did ALL the driving. Should have lost his man card.

I finally got to drive it and he was right. it was terrible. After some measuring, we figured out his pin was located 2 inches behind the axle center line. His rails were installed by the previous owner. We also found out that they were very poorly installed. Someone had just cobbled a mount in each corner with scrap metal.

I had him order the correct bracket kit to go under the bed and we reinstalled the rails correctly and it pulls fine now.
__________________
charliez is offline   Reply With Quote
Old 05-23-2016, 12:35 PM   #32
Moderator Emeritus
 
SmokeyWren's Avatar


 
Join Date: Jun 2011
Location: Midland County, Texas
Posts: 3,326
Quote:
Originally Posted by charliez View Post
I had him order the correct bracket kit to go under the bed and we reinstalled the rails correctly and it pulls fine now.
Too bad about the extra holes in the floor of the bed. But large fender washers with bolts through those holes will hide those holes and probably won't be noticeable to most folks.
__________________
SmokeyWren is offline   Reply With Quote
Old 05-23-2016, 01:10 PM   #33
Senior Member
 
Join Date: May 2005
Location: Bryan, Texas
Posts: 611
He didn't care about that. We just left them. Gave him a place to sweep acorns away.
__________________
charliez is offline   Reply With Quote
Old 05-23-2016, 04:08 PM   #34
Senior Member
 
Join Date: May 2001
Location: Spicewood, Tx
Posts: 572
Quote:
Originally Posted by SmokeyWren View Post
Mounting the 5er hitch so the center of the kingpin is behind the rear axle is unacceptable. The furtherest back the center of the kingpin should be is centered over the rear axle. And 2" to 4" in front of the center of the rear axle is much, better for handling, especially handling during emergency conditions.
I was referring to the pivot point being behind the truck's rear axle when a sliding hitch is in the maneuver position, not the normal towing position.
__________________
dayle1 is offline   Reply With Quote
Old 05-23-2016, 05:06 PM   #35
Senior Member
 
caissiel's Avatar
 
Join Date: Oct 2011
Posts: 1,312
Why are we so concerned about the turning angle of 5th wheels. The TT's are really limited to 60 degrees while the trailer axles are much further back.
With my past short bed Chevrolet 2500 and a 33 ft 5 th wheel with square front I could do a U turn in a 3 lane road any day.
The shorter wheel base on a truck makes the units much easier to maneuver.
__________________
Barbara and Laurent, Hartland Big Country 3500RL. 39 ft long and 15500 GVW.
2005 Ford F250 SD, XL F250 4x4, Long Box, 6.0L Diesel, 6 Speed Stick, Hypertech Max Energy for Fuel mileage of 21 MPusG empty, 12.6 MPusG pulling the BC. ScangaugeII for display..
caissiel is offline   Reply With Quote
Old 05-24-2016, 06:14 AM   #36
Senior Member
 
Join Date: May 2005
Location: Bryan, Texas
Posts: 611
"referring to the pivot point being behind the truck's rear axle when a sliding hitch is in the maneuver position, not the normal towing position"

Right, but with the pin fixed several inches behind the axle, the towing results are the same as if your towing with the pin slid back, which both are a no no
__________________
charliez is offline   Reply With Quote
Old 05-24-2016, 10:43 AM   #37
Senior Member
 
Join Date: May 2001
Location: Spicewood, Tx
Posts: 572
Quote:
Originally Posted by charliez View Post
"referring to the pivot point being behind the truck's rear axle when a sliding hitch is in the maneuver position, not the normal towing position"

Right, but with the pin fixed several inches behind the axle, the towing results are the same as if your towing with the pin slid back, which both are a no no
If you are following my original reference, Smokey was talking about having to do a u turn on a dead end road. Nothing about TOWING!
__________________
dayle1 is offline   Reply With Quote
Old 05-24-2016, 01:42 PM   #38
Senior Member
 
Join Date: May 2005
Location: Bryan, Texas
Posts: 611
I'm just saying that my buddy has his pin permanently mounted a couple inches behind the axle by the previous truck owner and it towed terrible. Moving it on center of the axle fixed that.
__________________
charliez is offline   Reply With Quote
Old 05-25-2016, 08:38 PM   #39
Senior Member
 
roothoss1282's Avatar
 
Thor Owners Club
Carolina Campers
Join Date: Nov 2015
Location: Upstate South Carolina
Posts: 113
Talking What I have

I have a 2015 F-250 with a short box or 6'9" box and use the Anderson Ultimate Hitch which gives you 9" more room and pull a Montana High Country 2016 and have no problem at all. I have tried to get it in a bind and not to say it couldn't happen but have never gotten even close. I no its a little late to chime in but might help other folks. I have found this is a great site ( the best) to get info without feeling like you shouldn't ask a stupid question. Kudos to the great members on irv2.
__________________

__________________
2016 F-350 DRW 4x4- B&W Turnover Ball with Andersen Ultimate Hitch
2016 305RL Montana High Country, with Mich. XPS Ribs
roothoss1282 is offline   Reply With Quote
Reply

Tags
5th wheel, tow, towing



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
06 Silverado 2500HD Short bed, 97 27'? Starcraft 5th Wheel Shimera Need Slider? Sixkids 5th Wheel Discussion 8 05-03-2012 07:40 AM
Short bed or Long bed for 5th wheel? NorCalCamper Trailer Towing and Tow Vehicles Discussion 34 10-05-2010 10:09 AM
Long bed or Short bed for towing 5th wheel burt013 Trailer Towing and Tow Vehicles Discussion 23 02-22-2007 08:47 PM
5th Wheel with short bed P/U John and Ginny Trailer Towing and Tow Vehicles Discussion 9 05-21-2006 07:16 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:33 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.