Trailer Sway

[dtr118]

I have a 2020 Trail Boss.  Has anyone switched out the Good Year duratrac tires which are load range C for the BF Goodrich K02 load range E?  I have a lot of trailer sway with the good year tires, they have soft side walls.  I want to switch but am unsure how to change the factory tire pressure settings.  The K02 tires run 80psi compared to the 41psi on the good years.  I don't want to get alerts for high pressure from the chevrolet app.

Edited November 23, 2020 by dtr118
delete, wrong forum

[Supercup]

Hi,

 

You may want to "re-post" this in the section for 1500 trucks - this is the HD section.  I have 2020 AT4 - and tow quite a bit - I find the tires and rear springs a bit soft and you do get some sway, certainly more than prior trucks I owned.  I have found with sway control bars and load level hitch most of the problem was solved.  I still have the stock load range C duratracs.  

 

Going to load range E tires with stiffer sidewall will help as well.   Not likely you would run pressures anywhere near the 80 lbs you mentioned - most likely when towing around 50-60 psi.  I don't think that will be issue for your system, as I run 60 lbs on goodyear trailer tires with sensors reading in the truck no problem.

 

 think you may find that the tires will have an impact, but not as much of an impact as adding sway control bars and load leveling hitch to your trailer and updating your rear springs, either with adding sumo springs (cheap fix) or a new custom spring pack from Deaver Springs.  

 

I am towing a toy box (10 k loaded , 6,500 empty - 1,200 lbs tongue weight) and a Intech race car trailer (9,000 lbs loaded, 4,500 empty - 1,000 lbs of tongue weight) 

 

I had a 2014 Raptor before and it had similar issues.  I found that addressing the issue in the order below gave me a good idea of what each item did for me. 

 

I did it in steps as follows with 2014 Raptor which had BFG KO2 35" tires load range D:

1. Sway Control bar and load leveling hitch - net result - 1.25" less sqaut under tongue weight - big improvement overall  - overall cost $550 

2. Second sway control bar on trailer  - net result - small improvement - limited sway to wind situations  - overall cost $50 

3. Deaver custom rear spring pack - net result - reduced squat (without load level hitch) from 1.5" stock to about 0.50" - big improvement in ride (loaded and unloaded) better trailer control - $1,100

 

For 2019 AT4 I did the following: - Had Ready Lift SST 2" level kit 

1. Sway Control bar and load leveling hitch - net result - 1.00" less sqaut under tongue weight - big improvement overall  - overall cost $550 

2. Second sway control bar on trailer  - net result - small improvement - limited sway to wind situations  - overall cost $50 

 

I traded the my 2019 for a 2020 AT4 to get Trailer Tow Mirrors and Camera tech and did the following:

1. Sway Control bar and load leveling hitch - net result - 1.00" less sqaut under tongue weight - big improvement overall  - overall cost none - transferred from 2019

2. Second sway control bar on trailer  - net result - small improvement - limited sway to wind situations  - overall cost none - transferred from 2019

3. BDS 2.5" lift - 2.5" coilover front shocks (adj) with 2.0 (non adj) rear shocks - stock springs - overall cost $5k - net result - great improvement in truck on and off road - for towing - a little better control but not a ton of added impact - so net effect is this suspension benefits me when not towing on and off road. 

 

I plan to add sumo springs to the rear next, to see if that carries the tongue weight better - they area  cheap alternatiave to Deaver Springs 

 

I also plan to go with KO2's when I need new tires.  

 

Good luck finding the right solution.