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 06-10-2012, 02:24 PM   #1
Junior Member
 
Join Date: May 2012
Posts: 16
tow vehicle specs??

Just joined this forum last week & getting all kinds of great info. We're selling the house & everything in it () & getting a mobile suites/tv & hitting the road full time (). The ms will top out around 16k so I'm planning on a dodge 3500 drw short bed (crew or mega cab) with a slider hitch (the ms has a trailair pin box). Also making sure I have G rated tires (LT?) on the ms (maybe 17.5, though I hear they may be hard to get on the road in lonely places). One other thought I've had along the ms weight line - why do they put two 7k axles on a rig that they know will easily go to 15 or 16 K? Is that dangerous or just irresponsible? Are they subtracting the pin weight from the total weight?

I've been looking at all the tv threads & getting an idea of what people have, but what exactly are all the things I should get/look for in the tv - i.e. heavy duty this, extra that, etc. If I buy new I can sit down with the dealer & make sure it has everything on it I need. But if I buy used I need to know what to look for/need. You guys are the gruru's on all this so I look forward to hearing from you.

Thanks in advance.

gd
__________________

__________________
imouttahere 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 06-10-2012, 02:43 PM   #2
Senior Member
 
Doug Sage's Avatar
 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: Mar 2001
Location: Originally from near Portland, OR
Posts: 699
Yes, they subtract the pin weight to get the required axle weight. I personally disagree with this but that is the way it is.
__________________

__________________
Doug Sage
Full timers roaming the good old US of A
2007 Itasca Suncruiser 38J
2015 Jeep Cherokee Trailhawk
Doug Sage is offline   Reply With Quote
Old 06-10-2012, 03:30 PM   #3
Moderator Emeritus
 
TXiceman's Avatar


 
Vintage RV Owners Club
Texas Boomers Club
Oklahoma Boomers Club
Ford Super Duty Owner
Join Date: Aug 2000
Location: Full Time, TX Home Base
Posts: 17,150
Blog Entries: 21
I would suggest yo go ahead and get a long bed and not deal with a slider hitch.

Ken
__________________
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot
TXiceman is offline   Reply With Quote
Old 06-10-2012, 03:34 PM   #4
Moderator Emeritus
 
RustyJC's Avatar


 
Texas Boomers Club
Join Date: Jul 2000
Location: Cypress, Texas USA
Posts: 8,854
Quote:
Originally Posted by imouttahere View Post
One other thought I've had along the ms weight line - why do they put two 7k axles on a rig that they know will easily go to 15 or 16 K? Is that dangerous or just irresponsible? Are they subtracting the pin weight from the total weight?
This is commonplace among most 5th wheel manufacturers. Since ~20% of the GVWR is carried by the truck as pin weight, a 16,000 GVWR 5th wheel would transfer 3,200 lbs to the truck if it were loaded to capacity leaving 12,800 lbs to be carried by the 14,000 lb rated pair of axles at maximum GVWR. I've never had any axle or suspension problems with my MS with 2 each 7K Dexter Never-Lube axles.

Don't mess around with the Goodyear G614s. Get the 17.5" wheels and tires and be done with it. After 2 tread separation failures (the second doing $2500 in damage to the RV) with the OEM 16" G614s, I upgraded to 17.5" load range J tires and have never had another problem. Insofar as availability is concerned, I upgraded to 17.5" on the spare as well.

Rusty
__________________
2016 Ram Longhorn 3500 Dually 4x4 CCLB, 385/900 Cummins, Aisin AS69RC, 4.10
2014.5 DRV Mobile Suites 38RSSA #6972
Come join us on a TEXAS BOOMERS rally!
RustyJC is offline   Reply With Quote
Old 06-10-2012, 05:18 PM   #5
Member
 
Cyclone Dave's Avatar
 
Join Date: Jul 2011
Location: Returned to home in CA to become a grandparent for the first time.
Posts: 79
I recommend that you visit Fifth Wheel St. and read the "Before You Buy" article.
__________________
David W. Gray - RV Safety Educator and Consultant at Fifth Wheel Street.
Cyclone Dave is offline   Reply With Quote
Old 06-10-2012, 05:25 PM   #6
Senior Member
 
Rednax's Avatar
 
Join Date: Dec 2006
Location: Corpus Christi, Texas
Posts: 138
Agreed with longbox recommendation. No advantage -- of any sort -- with the short.
__________________
2004 2WD Dodge 305/555 CTD 6-speed
1990 35' Silver Streak Sterling
Hensley Arrow
Rednax is offline   Reply With Quote
Old 06-10-2012, 07:20 PM   #7
Senior Member
 
Cat320's Avatar
 
Fleetwood Owners Club
American Coach Owners Club
Join Date: Mar 2011
Posts: 4,744
RustyJC has it nailed, also agree with the long box, the truck will ride better and...you'll find a way to fill it.
__________________
2014 American Eagle 45T
DD 500
Pulling a Honda CRV
Cat320 is offline   Reply With Quote
Old 06-10-2012, 07:45 PM   #8
Moderator Emeritus
 
TXiceman's Avatar


 
Vintage RV Owners Club
Texas Boomers Club
Oklahoma Boomers Club
Ford Super Duty Owner
Join Date: Aug 2000
Location: Full Time, TX Home Base
Posts: 17,150
Blog Entries: 21
I also recommend you go on up to the 17.5" rims and load range H or J tires. Also add a TPMS, tire pressure monitoring system.

Ken
__________________
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot
TXiceman is offline   Reply With Quote
Old 06-10-2012, 08:35 PM   #9
Moderator Emeritus
 
SmokeyWren's Avatar


 
Join Date: Jun 2011
Location: Midland County, Texas
Posts: 3,326
Quote:
Originally Posted by imouttahere View Post
One other thought I've had along the ms weight line - why do they put two 7k axles on a rig that they know will easily go to 15 or 16 K?
You must have an older Mobile Suites. The new models have 17.5" tires = Tire Size 215/75R17.5J. And the shortest ones, for example model 32RS3, have a GVWR of 18,500, with two 8,000-pound axles.

Partial specs for Mobile Suites model 32RS3:

Length 33’ 8”
Width 101”
Height 12’ 8”
Dry Weight 12,150
Dry Pin Weight 2,650 (21.8%)
GVWR 18,500 (21.8% = 4,033 estimated wet and loaded hitch weight)
Tire Size 215/75R 17.5J
Size of Axle 8,000
Number of Axles 2
Mobile Suites - DRV Suites

But your question is still valid.

If you load the model 32RS3 RV down to the 18,500 GVWR and drive onto a CAT scale, your combined trailer axle weight will probably be around 14,500 to 15,000 pounds. So trailer axles will be well below their 16,000 pounds combined weight rating. The 3,500 to 4,000 pounds hitch weight will be on the truck axles, not on the trailer axles.
__________________
Grumpy ole man with over 50 years towing experience. Now my heaviest trailer is a 7,000-pound enclosed cargo trailer, RV is a 5,600 pound Skyline Nomad Joey 196S, and my tow vehicle is a 2012 F-150 3.5L EcoBoost SuperCrew.
SmokeyWren is offline   Reply With Quote
Old 06-11-2012, 07:16 AM   #10
Junior Member
 
Join Date: May 2012
Posts: 16
Thanks for all the "experienced" information. Looks like 17.5 & a long bed is the way to go. We're looking at two suites at the moment - an '07 36RL that was bought, trailed to this area & used once - asking $46k (initial price). It's loaded with everything, including the wingard autotracking sat. system, w/d, two awnings, slide covers, trailair pin etc. Only one ducted AC though. After that their daughter lived in it for a few years while she went to law school. The other is an 08 (I think also a 36RL but might be a 38RL) that was towed 100 mi. from the dealer & never moved. Snowbirds use it 5 mo. out of the year. It's been upgraded also (no sat. though) and also has an extended warranty good till 2015. They're asking $54k. We'll look at both next week. I just assumed they had 7k axles & 16" tires. In either case I'm replacing the rubber so might as well get the 17's, assuming there's enough room between the tires to increase the size... We'll see.... Let you know what happens.

Now, back to my orig. post.... I would still like to know specifically what I should get in with a new dodge 3500 drw or look for in a used one. V tailgate (i know that looses the rear camera)? Obviously the HD tow package (whatever that includes). 4:10 rear end or 3:83? Reese hitch? Other options (aftermarket stuff) that I don't even know about? I assume an aux gas tank may come in handy - does that mount behind the cab? Look forward to seeing what goodies everyone has in their tv.

Thanks,
gd
__________________
imouttahere is offline   Reply With Quote
Old 06-11-2012, 07:30 AM   #11
Junior Member
 
Fyrman25's Avatar
 
Join Date: Jun 2012
Posts: 4
There are several aftermarket companies that build auxiliary fuel and replacement fuel tanks. Transflow and Titan are two good companies. It all depends on where you want the tank, and how much more fuel you want to carry. Im sure that a long bed 3500 has a 40+/- gallon tank from the factory.

Plus you can only go so far before the wife has to get out and use the restroom anyway.
__________________
2011 Ford F350 Lariat CC SB 4x4 6.7L Powerstroke

2010 Holiday Rambler Campmaster 28 RLS - SOLD
Fyrman25 is offline   Reply With Quote
Old 06-11-2012, 07:31 AM   #12
Moderator Emeritus
 
TXiceman's Avatar


 
Vintage RV Owners Club
Texas Boomers Club
Oklahoma Boomers Club
Ford Super Duty Owner
Join Date: Aug 2000
Location: Full Time, TX Home Base
Posts: 17,150
Blog Entries: 21
I hac a V tailgate on the previous truck and it was still in the way at times. This truck has the standard tailgate and no problem. You just have to remember to raise and lower it at the proper time. I also have a bed cover for when the truck is not towing. A V gate would not be worth having with the bed cover.

If you add a fuel tank, remember to account for the extra weight of the fuel in your load calculations.

Also, with that much trailer you DO WANT a 4.10 rear axle ration.

Ken
__________________
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot
TXiceman is offline   Reply With Quote
Old 06-11-2012, 07:43 AM   #13
Moderator Emeritus
 
RustyJC's Avatar


 
Texas Boomers Club
Join Date: Jul 2000
Location: Cypress, Texas USA
Posts: 8,854
Quote:
Originally Posted by imouttahere View Post
In either case I'm replacing the rubber so might as well get the 17's, assuming there's enough room between the tires to increase the size... We'll see.... Let you know what happens.
The 215/75R-17.5 tires are smaller in diameter than the 235/85R-16 tires you'd be replacing. Clearance is not a problem at all.

I've never used a 5th wheel (vee) tailgate in 16+ years of towing 5th wheels and have never trashed a tailgate. I'd keep the stock tailgate and rear camera personally.

Rusty
__________________
2016 Ram Longhorn 3500 Dually 4x4 CCLB, 385/900 Cummins, Aisin AS69RC, 4.10
2014.5 DRV Mobile Suites 38RSSA #6972
Come join us on a TEXAS BOOMERS rally!
RustyJC is offline   Reply With Quote
Old 06-11-2012, 07:46 AM   #14
Moderator Emeritus
 
RustyJC's Avatar


 
Texas Boomers Club
Join Date: Jul 2000
Location: Cypress, Texas USA
Posts: 8,854
Quote:
Originally Posted by imouttahere View Post
Now, back to my orig. post.... I would still like to know specifically what I should get in with a new dodge 3500 drw or look for in a used one. V tailgate (i know that looses the rear camera)? Obviously the HD tow package (whatever that includes). 4:10 rear end or 3:83? Reese hitch? Other options (aftermarket stuff) that I don't even know about? I assume an aux gas tank may come in handy - does that mount behind the cab? Look forward to seeing what goodies everyone has in their tv.
Get the MaxTow package and you'll get the stuff you need to tow that MS - 4.10 gears, extra cooling for the transmission and rear axle, etc. Don't settle for anything less. With the double overdrive (5th and 6th gear are both overdrives) 68RFE automatic transmission that comes with the MaxTow package, the 4.10 gears are easy to live with. 60 MPH in my truck is only 1612 RPM in 6th gear, and the 4.10s make 6th gear a useable gear for towing, even in the Tow/Haul mode.

By the way, your other choices are 3.73 and 3.42 axle ratios. Forget the 3.42s, and you'll be giving up LOTS of GCWR with the 3.73s. Go for the MaxTow and be done with it if you're getting a new truck.

Rusty
__________________

__________________
2016 Ram Longhorn 3500 Dually 4x4 CCLB, 385/900 Cummins, Aisin AS69RC, 4.10
2014.5 DRV Mobile Suites 38RSSA #6972
Come join us on a TEXAS BOOMERS rally!
RustyJC is offline   Reply With Quote
Reply



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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:37 PM.


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