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Old 10-28-2021, 12:14 PM   #21
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Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 1,240
THOR #17765
Quote:
Originally Posted by BobC View Post
I also have a 2016 Hurricane 35C and the hitch broke while traveling on I 87 in New York.
The welds broke where the hitch mounts to the frame, all at once, with no evidence of previous cracking.

I notified the NHTSA of the situation.

It is a serious defect that should be remedied.
I missed it. What vehicle were you towing? How heavy? What is your units gvwr and GCWR . Mine has an 8000 rated hitch but only 5000 to spare with GCWR.

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Old 10-28-2021, 12:29 PM   #22
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Brand: Thor Motor Coach
Model: Vegas 24.1
State: Florida
Posts: 755
THOR #5313
I pull 5200 with e450 Vegas. Getting to 500 lb tongue weight was easy.

Check hitch mounting/bolts every 6 months. No issues in 5 + years towing all over SE.

Is not hard to check/inspect.
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Old 10-28-2021, 12:59 PM   #23
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Brand: Thor Motor Coach
Model: HURRICANE 35C
State: Florida
Posts: 22
THOR #16807
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Originally Posted by Jimbo56 View Post
I missed it. What vehicle were you towing? How heavy? What is your units gvwr and GCWR . Mine has an 8000 rated hitch but only 5000 to spare with GCWR.
I was towing a 2019 GMC Acadia. Weighs about 3900 pounds.

Hitch was rated at 8000.
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Old 10-28-2021, 03:49 PM   #24
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Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 3,431
THOR #6411
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Originally Posted by BobC View Post
I was towing a 2019 GMC Acadia. Weighs about 3900 pounds. Hitch was rated at 8000.
All hitches are rated for a straight pull without a drop. MorRyde welds the hitch to the frame adapters and then to the frame itself on my coach. Where it usually tears is in the frame adapters and not the hitch itself. Usually it is the bending moment from the excessive torque caused by the drop. I tow three different vehicles on my 350 lb Master Tow dolly with surge brakes. I use a Roadmaster spare tire carrier mounted to the standard hitch with a 1" riser. The vertical load in the receiver is 100 lbs from the tire and 29 lbs from the dolly tongue. The vehicles towed are 2,800 lbs to 3,500 lbs. So far no problems with my 2016 Hurricane's hitch in 42,000 miles.
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2016 Hurricane 31S
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Old 10-28-2021, 03:59 PM   #25
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Brand: Thor Motor Coach
Model: THOR Chateua 35SF
State: Florida
Posts: 4,543
THOR #11130
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Originally Posted by Beau388 View Post
Lippert is a parts supplier to the RV industry. Lippert is not certified to modify Ford chassis. It is MorRyde Internationalm who makes Airstream chassis and modifies Ford chassis for Thor Industries. In actuality Detroit Chassis assembles the F-53 and E-350 chassis for Ford. The F-X50 chassis and cabs are built by Ford in Ford's truck assembly plants.
You are correct. That's the company I was thinking of but had a brain fart.
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Old 11-20-2021, 02:14 PM   #26
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Brand: Thor Motor Coach
State: South Carolina
Posts: 123
THOR #21394
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Originally Posted by The Gritz Carlton View Post
Most of these hitches are installed by LCI during the frame/chassis prep, and done very well. What I've seen with the hitch issues posted are the use of drop hitches causing the problem. Hitches are rated at a pure lateral load with the assumed ball position 4 inches from the outer, receiver "ring" of the hitch itself. Extending the hitch beyond this reduces the capacity by 50% (etrailer and a few other hitch manufacturers). Further, dropping the hitch 6 or 10 inches creates a "fulcrum" or "twisting" effect, causing stress on start ups and when stopping. The standard for most applications is approximately 18" from the ground. Most of the hitches installed on these commercial chassis' (higher than a light truck setup) are much higher than 18", requiring some type of drop.
Gritz,
Love your responses.
Next problem I can't figure out I'm going directly to you.
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Old 11-20-2021, 03:59 PM   #27
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Brand: Still Looking
State: Texas
Posts: 5,833
THOR #2121
A level tow bar is best, but if not perfectly level, then what? Rhetorical question — I know answer. Without proper context rules of thumb can be next to meaningless.

Anyway, below are pictures of tow bar geometry that caught my eye as an example of being less than ideal, yet I’d bet it has been hauled around the US that way a few times.

It reminded me of the various threads on this subject, so posting as “food for thought”.
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