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Old 04-21-2019, 11:56 AM   #1
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Towing tips

Hi all,
Still pretty new to RVing and have a question about towing. I drive a 2012 Ford F-250 with a 6.7 Turbo Diesel, rated to tow around 12,500#. I have new Bilstein shocks all around and I use an e2 hitch to help with sway. My 33' Apex Ultra Lite, loaded weighs around 11K#.

Why is it that when I start to drive I get a tugging back and forth sensation and the same when I go over small bumps on the interstate? I thought my truck would pull this thing with almost no effort. I either have some work to do to the truck or I need to learn how to drive with a 33' TT connected.

Thanks for any advice/suggestions!
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Old 04-21-2019, 12:10 PM   #2
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Quote:
Originally Posted by BaRV View Post
Hi all,
Still pretty new to RVing and have a question about towing. I drive a 2012 Ford F-250 with a 6.7 Turbo Diesel, rated to tow around 12,500#. I have new Bilstein shocks all around and I use an e2 hitch to help with sway. My 33' Apex Ultra Lite, loaded weighs around 11K#.

Why is it that when I start to drive I get a tugging back and forth sensation and the same when I go over small bumps on the interstate? I thought my truck would pull this thing with almost no effort. I either have some work to do to the truck or I need to learn how to drive with a 33' TT connected.

Thanks for any advice/suggestions!
It sounds like your trailer brake engaging. May need adjusting.
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Old 04-21-2019, 12:14 PM   #3
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Hard to say if the chucking you are feeling is normal or not.
What you can do is check to ensure your hitch is set up correctly and there is no ball slop.
Then check your hitch weight to ensure it's not too light. Might have to adjust load. I know I have slight chucking if I have too much weight toward the rear of the RV (making hitch weight too light).
Most handling problems I have come across are related to pin/ball weight and load positioning.
I'm sure you will get some other ideas on this forum. Lots of experience on FRF!
Good luck and have fun!
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Old 04-21-2019, 12:24 PM   #4
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Sounds like your WDH isn't set up correctly.

If you don't know how to do it, find a local trailer hitch shop (not an RV dealership) that knows their stuff so they can show you how to do it right.
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Old 04-21-2019, 12:36 PM   #5
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It could be your hitch shank moving around in the TV receiver, especially if you have a reducing sleeve. With every bump and change in speed the hitch moves up and down, side-to-side, or front-to-back. Hitch clamps are available to take up any slack.

I have a 2-1/2" receiver with a 2" hitch shank which requires a reducing sleeve. I also use a 2-1/2" hitch clamp that I got on Amazon and it makes for a very solid connection between the TV and TT.
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Old 04-21-2019, 01:00 PM   #6
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What tire pressure are you using on the trailer? If ST, you want them inflated to max. sidewall. Tires on our F250 are LRE and for towing I use 80 psi rear, and 75 front. If you ask what psi to use on the truck, you will get answers all over the map.

Your TW is going to being around 1400 lbs and maybe more plus allow 100 lbs for the WDH. What payload have you added in the truck? What is the payload capacity of the truck and have you taken truck & trailer to a scale (both fully loaded for camping)?

How did you adjust the spring bars on the WDH - front fender height measurement? How much weight have you restored onto the steer axle? You can also adjust weight distribution by going to a scale. Sounds like you may need to tighten up the spring bars. I have ours back to within 1/4" but newer truck specs call for only 50% load restoration. No reason I've seen why not to go above that.

Have you got the TT set up level to slightly nose down? I found setting the shank for slightly nose down was a fair bit better than level. Had to get a ball with 1" rise to make it work.

Sometimes there's no one single thing that makes a significant change and can be a number of factors that all add up and work together.
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Old 04-21-2019, 02:15 PM   #7
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IMHO, the E2 isn't enough for a 11k 33' trailer. You should have gotten its big brother, the 4 point Equal-i-zer WDH, for that size trailer.
Let me guess, your dealer didn't carry the 4pt Equal-i-zer, just the E2.
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Old 04-21-2019, 02:19 PM   #8
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Lots of good advice above.

I would run through the setup again and verify the measurements. Then I would scale the truck and trailer to see what the actual weights are.

Is the E2 rated for that weight? I didn’t think it went that high?

Bob
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Old 04-21-2019, 04:01 PM   #9
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The feeling you get when starting out may be related to what many refer to as 'launch shudder' caused by a slight misalignment of the driveshaft if the truck squats more than an inch or so.

It drove me crazy to the point that I added airbags to eliminate the TV squat caused by our 5th wheel trailer simply to get rid of the annoying 'launch shudder' at take off.

However, you may be able to fix both issues with adjustments to your WDH.
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Old 04-21-2019, 05:38 PM   #10
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Towing Tips-Thanks!

Thanks for all the tips and ideas. Although I have to say that I'm more confused now than I was earlier with all the talk about hitch weight and TW, ST and LRE tire pressures.....

These are the specs on my trailer:

UVW-5,720
Hitch Weight-715
Carrying capacity-1,880
GVWR-7600

Is there some sort of formula to figure out how to set this WDH up? My dealership did it and after all of these responses to my original thread I'm not sure it was done correctly.

My e2 WDH is rated at 10k# so it would seem that it is more than capable. I've read that the towing capacity of my truck is 12.5k#

Is there a way to adjust the hitch weight and Tongue Weight? Im wondering if airbags would help or maybe a Roadmaster Active Suspension system.

Anyway, I'll try to get to a scale and see what she weighs, but I guess I need to figure out the TW HW and all the other alphabet soup

Is there a simple guide to walk a newbie through all of this?

Thanks again everyone.
Chris
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