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 04-08-2011, 10:02 PM   #1
Junior Member
 
Join Date: Feb 2011
Posts: 29
Quick Help!

Tomorrow I'm signing and taking delivery of a 2011 F350 SRW short bed with the 6.2 gas motor....... I'm trading in my 2007 F350 dually that has the 6.0 diesel and the 4.30 rear,..... The new gas truck has the 3.73 rear...... My toy hauler is a 2011 Keystone Raptor 3912LEV..... My 07 truck pulled it pretty well...... It weighs in around 14,500 I believe...... Is there any one out there with experience with a change like this?
__________________

__________________
Matusky 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 04-08-2011, 10:19 PM   #2
KIX
Senior Member
 
KIX's Avatar


 
Join Date: Dec 2006
Location: St. Augustine, FL
Posts: 3,579
Quote:
Originally Posted by Matusky View Post
Tomorrow I'm signing and taking delivery of a 2011 F350 SRW short bed with the 6.2 gas motor....... I'm trading in my 2007 F350 dually that has the 6.0 diesel and the 4.30 rear,..... The new gas truck has the 3.73 rear...... My toy hauler is a 2011 Keystone Raptor 3912LEV..... My 07 truck pulled it pretty well...... It weighs in around 14,500 I believe...... Is there any one out there with experience with a change like this?
Someone more technically inclined than I am would have to give you a more in-depth answer. But, here's some potential problems in my opinion.

1. The old diesel truck had more torque than the new one you're getting. the result will be acceleration will be significantly reduced.
2. The differential gearing in the diesel would provide much better pulling performance due to the "taller" 4.30 gearing.
3. The new truck will likely give better fuel mileage on the highway without a tow of 14,500. With the 14,500 tow my guess is the fuel mpg will be less than the diesel.
4. If the purpose of buying the new truck is to pull your 14,500 trailer I would suggest much more "homework" before you make the trade.

Good luck
__________________

__________________
KIX
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
2013 Jeep Rubicon JK Unlimited
KIX is offline   Reply With Quote
Old 04-08-2011, 10:47 PM   #3
Senior Member
 
Ray,IN's Avatar
 
Join Date: Aug 2001
Location: North America somewhere
Posts: 13,712
In my opinion you will be greatly disappointed with that new trucks performance towing that 5er. I suspect the new truck will be overloaded on the rear axle with single wheels, which is the limiting factor for pin weight. This worksheet/calculator will help you decide. Tow Vehicle/Trailer Calculations Demonstrator
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
Ray,IN is offline   Reply With Quote
Old 04-08-2011, 10:58 PM   #4
Senior Member
 
Join Date: Apr 2010
Posts: 689
Believe you will find the Gasser comes up a bit short on the long hills
__________________
RVhauler is offline   Reply With Quote
Old 04-08-2011, 11:06 PM   #5
KIX
Senior Member
 
KIX's Avatar


 
Join Date: Dec 2006
Location: St. Augustine, FL
Posts: 3,579
No response from the OP makes me wonder what "Quick Help" meant
__________________
KIX
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
2013 Jeep Rubicon JK Unlimited
KIX is offline   Reply With Quote
Old 04-09-2011, 02:30 AM   #6
Member
 
Join Date: Mar 2011
Location: Southwest
Posts: 37
I would at least get 4.30 gears with the gasser.

Gman
__________________
Grodyman is offline   Reply With Quote
Old 04-09-2011, 06:33 AM   #7
Junior Member
 
Join Date: Feb 2011
Posts: 29
After reading about all the available performance upgrades to the 6.2,.... I think I'm gonna just do it,..... Maintenance will be less...... The truck is over $7,000 cheaper because of not having the diesel and the fuel here is .30 a gal less..... And I understand with the newer 6 speed trans, it helps a bit with the gearing..... Procharger also has a kit that adds 200hp and over 150 ft/lb of torque to this truck which I can use to get me back above the numbers of my old diesel if I have to........ Worst case is that I'll either get a smaller RV or a bigger truck in a few years depending on what the price of fuel looks like

Sorry so late to reply,..... I dozed off reading ford truck forums on my iPad, lol
__________________
Matusky is offline   Reply With Quote
Old 04-09-2011, 07:11 AM   #8
Moderator Emeritus
 
RustyJC's Avatar


 
Texas Boomers Club
Join Date: Jul 2000
Location: Cypress, Texas USA
Posts: 8,854
Having towed 5th wheels over the last 15 years with both gas-engine and diesel duallies, I honestly believe you're moving the wrong direction. The torque curve of a gasser means that you'll be spending a lot of time in the lower gears with the engine revving away and the fuel gauge dropping like a rock, the 3.73 gears are not preferred for towing, and the short bed/SRW configuration is not the way to go for a heavy 5th wheel. Having said all that, it appears that you've made your decision, so all I can do is wish you luck.....

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 04-09-2011, 07:27 AM   #9
Senior Member
 
jwomack's Avatar


 
Texas Boomers Club
Join Date: Jun 2010
Location: Katy, TX
Posts: 653
I just traded my 2010 2500HD 6.0 gasser for a 2011 3500HD 6.6 diesel. Both with 6 speed and 3.73 gears. milage towing @ 65-70 in gasser was 6 +or- and greatly affected by wind and hills. Diesel got 10+ on 1st haul also running 65-70. Unloaded gasser averaged 11.8 diesel is averaging 14.8.
__________________
Jimmy & Tre
Katy, TX
2014 Allegro Red 38QRA
& 2014 Jeep Sahara Unlimited Toad
"Get It While You Can"
jwomack is offline   Reply With Quote
Old 04-09-2011, 03:25 PM   #10
KIX
Senior Member
 
KIX's Avatar


 
Join Date: Dec 2006
Location: St. Augustine, FL
Posts: 3,579
Be aware that chipping your new truck may be teh second mistake you make. Is the transmission, rear end, etc designed to withstand another 200 HP??? Yessir, you can certainly do it but thecosts is most likely going to be in excess of the cost of the chipset.
__________________
KIX
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
2013 Jeep Rubicon JK Unlimited
KIX is offline   Reply With Quote
Old 04-09-2011, 03:44 PM   #11
Senior Member
 
Superslif's Avatar
 
Thor Owners Club
Pond Piggies Club
Join Date: Jun 2000
Location: NE. Ohio USA
Posts: 4,707
My brother has a 38' Raptor 5er. He tried to tow it with a Dodge 2500 V-10 SRW gasser. The V-10 just couldn't do it....Over-heated twice the first big hill off the freeway. Had to upgrade to a Dodge 3500 (SRW) diesel....His is 9500 dry, but with 6 ATV's and 100 gallons of fresh, 35 gallons of fuel in the trailer and a army of tools and air tanks, He is pushing the 5k cargo limit plus some. O + 4 kids....There was no other ? but to go diesel....
__________________
Jim, Diane & Robert ~ NE. OH.
2018 Outdoors RV Timber Ridge 24 RKS
2014 Toyota Tundra Limited 5.7L
IRV2 Photo Album ~Let's Go Places~
Superslif is offline   Reply With Quote
Old 04-09-2011, 07:47 PM   #12
Senior Member
 
Ray,IN's Avatar
 
Join Date: Aug 2001
Location: North America somewhere
Posts: 13,712
When you "chip" this 2011 pickup you can expect to have warranty issues within the 5yr/60K mile period.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
Ray,IN is offline   Reply With Quote
Old 04-09-2011, 09:15 PM   #13
Senior Member
 
wingnut60's Avatar
 
Join Date: Aug 2004
Location: Wherever the Suites is
Posts: 2,985
I believe he mentioned "Procharger" which I believe refers to a supercharger--big ideas for a new engine, and yes, warranty issues.
Joe
__________________
'15 38RSSA Mobile Suites
'05 36TK3 Mobile Suites--retired but not forgotten
'17 F450--trying one more Ford
'09 F450--died, replaced with '10--retired
wingnut60 is offline   Reply With Quote
Old 04-10-2011, 12:19 AM   #14
Junior Member
 
Join Date: Feb 2011
Posts: 29
So after much deliberation and reading the various replies,.... I bit the bullet and blew the other $8k right off and got the diesel,..... I must say the 6.7 powerstroke is a surprisingly powerful and quiet engine,...... I picked up this truck this morning with 3 miles and now I have 190 miles on it,.... Did a bunch of driving today! Tomorrow morning I'll be hooking up my 8,500 lb tool trailer to go back to the dealership to get my fifth wheel hitch, light bar, etc out of my old truck....... I'll let you guys know how it goes...... After all that was said here and a nice long conversation with my friend who's a mechanic and works on trucks like this all the time...... I guess I'm happy I kept with what I had and didn't take the risk
Attached Thumbnails
Click image for larger version

Name:	image-2877412116.png
Views:	60
Size:	661.1 KB
ID:	9411  
__________________

__________________
Matusky 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
lpg quick connect CraigA Monaco Owner's Forum 14 01-25-2011 11:59 AM
diesel engine shutting down: Need some quick advice mycoolbeans Winnebago Industries Owner's Forum 18 09-29-2010 08:13 AM
Air hose quick connect cpp8284 RV Systems & Appliances 10 09-06-2010 03:29 PM
Quick tips ???? "007" Newmar Owner's Forum 1 01-31-2009 06:54 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:32 PM.


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