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Old 03-17-2016, 08:07 AM   #29
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cwsqbm: That's where they get you! I'm a pretty good welder, been employed as one at times in the past. Also, trained as a machinist but never searched for work in that field. I could do the work but I still wouldn't be certified for any more than the 5,000 lbs the maker rated it for.

Chris: I keep a close eye on all of my connections, particularly the hitch. I lost a 42' trailer running 65 mph down I20 in Mississippi years ago due to a malfunctioning fifth wheel. The nose of the trailer fell on the tires on the rear axle and locked them up and brought me to a quick stop in the right lane of the interstate. Two things saved my butt. One was it was 11:00 PM and no traffic and the other was the trailer was empty. I don't know if visually and physically inspecting the connection would have made a difference but I do know that a couple times since, I have discovered a fifth wheel not latched good, that may or may not have held, but I take no chances. I put my hands on things to see if they will move and eyeball them up close. A procedure I highly recommend for all.
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Old 03-17-2016, 10:41 AM   #30
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Tongue weight is just as important if not more important than the total towed weight. 10% of the total weight is an accepted tongue weight. 15% can be better as long as it does not exceed the hitch dead weight rating. Consider what happens when you hit a dip in the road at 40-50 mph. A 500# tongue weight becomes a 2,000 -2500# downward force. Much of that force can be absorbed by the suspension until the suspension reaches it's limit. Then it is all on the hitch and frame. My hitch is rated for a 1500# tongue weight. I use a load leveling hitch which bumps it up to 1800#, but I load the trailer so that the tongue weight is not over 1200-1300#. Towing a properly loaded trailer with the correct hitch is crucial to having a safe and uneventful trip.
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Old 03-18-2016, 12:25 AM   #31
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I have a 9X3 c-channel under the rear of the rig. And I can only get a 5K hitch to install there? I have seen a 4x2 channel with a 5K hitch..... My intention will be to remove the class III hitch and weld in a Class V, since I think I found one, then I will reinforce the 9X3 c-channel with a couple 2 1/2 sq tubes about 8'long and weld along the inside of the c-channel at top and bottom. Then I will weld in a couple gussets and cross braces. I only need the extra TW because my towing weight is 4100# but with the harley close to the hitch, at 880# the TW is over the 500# of existing hitch rating.
UPDATE: Here is the hitch that I found and one source for it..... Amazon.com: CURT 15901 Class V XD Weld-On Receiver Hitch: Automotive .... I hope this helps. I will be getting one of these and trying to do a photo shoot of my upgrade. Over kill maybe but I'd rather be safe than sorry.

Idea to stiffen frame extension using about 8' sections of tubing and welding each on dotted lines...
Attached Files
File Type: pdf frame stiffening.pdf (79.6 KB, 19 views)
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Old 06-13-2016, 11:34 PM   #32
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Update #2

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Originally Posted by W3BY View Post
UPDATE: Here is the hitch that I found and one source for it..... Amazon.com: CURT 15901 Class V XD Weld-On Receiver Hitch: Automotive .... I hope this helps. I will be getting one of these and trying to do a photo shoot of my upgrade. Over kill maybe but I'd rather be safe than sorry.

Idea to stiffen frame extension using about 8' sections of tubing and welding each on dotted lines...
I bought the Curt 15902 Class V hitch and local shop has all the metal I want. He told me to box in the frame and be done with it. I'm looking into strength of doing that.
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