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Old 08-20-2020, 12:42 PM   #1
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Sway Question 1/2t or 3/4t.

Newbie here. Question on sway.
I just got back from a trip. We were only 1hr and a half away from home and had to take rt80 and really didn't like the sway when the big rigs pass.
Set up is 2018 f10 3.0l diesel pulling a 30ft TT, Starcraft super light. I'm about 2k under my towing capacity. Have a EZ weight distribution/sway control hitch witch I'm happy with normal driving.
Current truck is a lease but debating on buying it at end of lease or purchasing a f250. I know a 3/4 is better for towing as far as power but would a f250 actually help with sway when those big rigs come flying by??
No issues with sway normally.
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Old 08-20-2020, 01:14 PM   #2
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You don't mention wheelbase, or payload capacity, or actual weight of your trailer. 30' is a loooonnnngggg trailer. We pull our 25' TT with our F-150 but it weighs 5800lbs fully loaded and we have 164" wheelbase with the 8' bed. The longer the wheelbase of your tow vehicle, the stabler it will tow. Need more info but personally I think you are pulling too much trailer for your current truck.
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Old 08-20-2020, 01:16 PM   #3
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Lots of reasons for sway. P metric tires on the truck, improperly adjuated hitch, improper trailer loading, overloaded truck. Start by taking the setup to a set of scales. Make sure everything is loaded as you travel. Next increase tire pressures to max as liated on the sidewalls. Do this before you scale. These things are cheap or free. You need approx 12-15% of the trailers loaded weight as hitch weight, so when you weigh everything, drop the trailer and go back across the scales. Be sure to get front, rear and total weights. Also park somewhere that you know is level, walk away and look. Is the trailer level or slightly nose down?
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Old 08-20-2020, 02:05 PM   #4
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Truck 145 wheelbase. 16,100 gcvw.
TT 5,700Lbs empty 7,400 Loaded.
I’m figuring I’m at about 6000 with food clothes and accessories.
Truck GVWR 7050.
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Old 08-20-2020, 02:10 PM   #5
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Was it sway or being pushed by the air from the trucks, there is a difference.
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Old 08-20-2020, 02:51 PM   #6
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I will tell you my experience with sway.

I had a Honda Ridgeline towing a 4,600lb trailer (5,000 tow capacity). I typically traveled nothing but back roads because I camped at local state parks.

Then I wanted to make a 300 mile trip. The Ridgeline at about 60mph had some sway but alot of sway (push/pull) from tractor trailers.

I traded the Ridgeline on a F-150 and all sway was gone, even from tractor trailers.

I always thought the Ridgeline had a short wheelbase and the F-150 had a longer wheelbase which stabilized all sway.

I would not buy the leased vehicle unless you were 100% happy with the it towed.
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Old 08-20-2020, 03:06 PM   #7
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I guess I’m being pushed by air.
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Old 08-20-2020, 03:36 PM   #8
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You definitely are. I pulled a 30í trailer with my F250 and on very windy days you still get pushed around a bit, but no way Iíd try that with an F150...
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Old 08-22-2020, 06:58 AM   #9
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Being pushed around

So I guess my question is would I be pushed around less In A 3/4 ton vs a 1/2 ton truck.
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Old 08-22-2020, 07:30 AM   #10
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Maybe, but not always. The 3/4 truck will be slightly heavier and will handle some of it better. Does it push you out of your lane ?
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Old 08-22-2020, 07:46 AM   #11
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First thing is weight it. After looking at you weights and ensuring that you have 15 % or so hitch weight. As Don said air up your tires. Next ensure both truck and trailer are level. If not adjust your wd as needed. Next make sure your sway control is adjusted right. If you have all that correct and it still sways (you will aways have some) then look at a F250. We did the same with my freinds 2020 ram 1500. He has a 28 ft camper. He did not like the sway. Went to a F250. No issues. Wd and tire pressures can make a big difference
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Old 08-22-2020, 08:47 AM   #12
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I disagree with Nevada.

Definitely a F-250 will not get pushed around like a F-150. It has a longer wheelbase plus weighs 1,700lbs more. Both help to stabilize towing.

A F-250 will always tow better than a F-150.
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Old 08-22-2020, 09:20 AM   #13
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1st thing is to make sure your WDH is set up properly. Are you returning the front of the truck back close to the OEM empty ride height?
2nd is the TT level, or parallel to the ground?
3rd do you know what the TW of the TT is loaded? It needs to be 12% plus.
3rd, have you aired up your truck tires and your TT tires to the max on the sidewalls?

And 4th, yes a little push pull is normal especially with a 145" WB truck and a 30' TT.

A 3/4 ton will not get moved around much if at all with a 6000+ lb TT, but you'll still know it's back there.

I tow 31' and 9500 lbs with a 3/4 ton and get push a little so 3500 lbs less would be ideal.

Are you sure you're only 6000 lbs loaded? 5700 lbs and only adding 300 lbs seems really low.
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Old 08-22-2020, 12:56 PM   #14
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My short bed F-250 has a wheelbase of 160" which is designed to control the trailer. The new bigger GM 2500/3500 trucks with a short bed have a 159" wheelbase.
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