Jayco RV Owners Forum

Thread Tools Display Modes
Old 08-04-2016, 07:52 PM   #1
Junior Member
Join Date: Jul 2016
Location: Minneapolis
Posts: 8
Leaf spring assist for more payload capacity?

I searched for an answer to my question in this forum, but couldn't find the answer so perhaps someone can help me out.

We have a 2004 Nissan Titan and just purchased a Flight SLX 267. Based on my estimate we'll be within the available payload, but not by all that much.

During a trip to the auto parts store last week I noticed a product described as a leaf spring assist set. It looked like a bolt-on product and supposedly it can increase your payload capacity. Is this a legitimate way to build in some safety factor? Is there a better way?

I don't have any experience with towing a trailer this size so I'd appreciate some input. I'm going to follow the advice I've read here and use a scale to get more precise weight data. In the meantime, I'd like to learn more about my options.

Gryphon is offline   Reply With Quote
Old 08-04-2016, 07:58 PM   #2
Senior Member
Marcm157's Avatar
Join Date: Jun 2016
Location: Newburgh
Posts: 2,163
No add on device will increase payload. I installed the Roadmaster Active Suspension to my truck and it helped quite a bit with the ride as well as the sag under a load. Payload can not be increased.

2016 Ford F250 Supercab - 6.2 - Equalizer 12K WD Hitch
2016 Ford F150 Scab - 3.5 Ecoboost HD Tow - Roadmaster Active Suspension - (Reluctantly sold and deeply missed)
2016 Jayco 28BHBE - Progressive Industries EMS-HW30C
Marcm157 is offline   Reply With Quote
Old 08-04-2016, 08:09 PM   #3
Senior Member
Join Date: Sep 2015
Location: Thunder Bay
Posts: 117
No you can not increase payload capacity in any way by adding anything. All add on stuff does is help with the ride and squat

Sent from my iPhone using Tapatalk
Coldfusion is offline   Reply With Quote
Old 08-04-2016, 08:13 PM   #4
Senior Member
Join Date: Jul 2014
Location: Silver Spring, MD
Posts: 1,031
I think you need to better define what you mean by "payload" increase.

You can research your local jurisdictions registration requirements and figure out how to register your Titan for a higher GVWR and make it LEGAL to increase your payload.

There are ways that you can increase your trucks ability to handle higher weights. You just need to determine what the limiting factor is and replace that. Maybe the springs are the limiting factor, maybe the brakes, maybe the tires, maybe the lugs, maybe the frame. That will make it SAFE to increase your payload.

But there is no way to add anything to your vehicle to increase the manufacturers posted payload sticker, the sticker by which the manufacture warrantee's their parts.
spoon059 is offline   Reply With Quote
Old 08-04-2016, 08:31 PM   #5
Junior Member
Join Date: Jul 2016
Location: Minneapolis
Posts: 8

Thank you for confirming what I thought was the case.

I don't have the exact numbers handy, but there is about 1600 lbs between the curb weight and GVWR for the old Titan. Between my passengers, two huge dogs, topper, hitch and the TT tongue weight I'm using up about 1400 lbs. I was assuming that the rear suspension was the limiting factor. The truck has all new brakes and it should have enough motor as well.

I appreciate the quick responses.
Gryphon is offline   Reply With Quote
Old 08-04-2016, 11:29 PM   #6
Senior Member
Join Date: Apr 2016
Location: SW Washington
Posts: 922
The critical component is the axles.
2009 F350 CC LB 4WD
2017 Jayco 355MBQS
Rustysocket is offline   Reply With Quote
Old 08-05-2016, 03:53 AM   #7
Senior Member
Join Date: Aug 2013
Location: NC
Posts: 973
Light duty trucks that are not for hire don't have pay loads. There are add ons that will improve the handling and safety of any truck. I do not know of the kit you mentioned here but if your truck is sitting on the bump stops then you have zero rear suspension travel and that is a safety issue that can be improved with new springs, air bags or Timbren springs.
No man has a good enough memory to be a successful liar. Abraham Lincoln

2016 36FBTS Pinnacle
2016 F350, 6.7, 4x4, DRW, long bed
B & W Companion 5th wheel Hitch
eldermike is offline   Reply With Quote
Old 08-05-2016, 09:14 AM   #8
Senior Member
Donedroolin's Avatar
Join Date: Nov 2012
Location: Athens
Posts: 678
I have the Timbrens on my Ford F250, they helped with rear end sag. Here are some pics of OEM bump stops and new Timbrens
Attached Thumbnails
timbren3.jpg   timbren4.jpg   timbren1.jpg  

2013 JAYCO EAGLE 314BDS(Ordered)
Donedroolin is offline   Reply With Quote
Old 08-05-2016, 09:32 AM   #9
RollingDownTheHighway's Avatar
Join Date: Jul 2016
Location: CT
Posts: 87
not to high-jack the thread, I was looking into this as well. I have access to a rear suspension from a 2016 3500 CC and I have a 2016 2500 CC, if I add that rear leaf pack to my 2500, will that increase may payload?
RollingDownTheHighway is offline   Reply With Quote
Old 08-05-2016, 09:54 AM   #10
Senior Member
JFlightRisk's Avatar
Join Date: Apr 2012
Location: Newark
Posts: 1,093
Payload capacity also takes into consideration frame size and strength, and most importantly brakes. Your 2500 front brakes may be smaller, and less effective than a 3500's, and by the sounds of it you're only changing the rears. just something to consider.

2012 Jay Flight 19RD
2010 Tundra TRD DBL Cab
1 Spoiled Dog
JFlightRisk is offline   Reply With Quote

Thread Tools
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 State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 11:50 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.