Heavy Hauler,
My '97 has a turn-over ball gooseneck plate in the bed, it is a big honkin' plate of steel but no, repeat NO, safety chain attachments. I looked at a lot of used trucks with hitches when I bought mine, and I only saw one or two with hitches that had the pop-up u-bolts for safety chains. QTRHRS's approach seems like the best solution. Most of the older gooseneck trailers around here seem to have breakaway cables instead of chains.
Just for example, below is the Texas Transportation code that covers safety chains. If you are pulling an agricultural trailer or operating under Federal motor carrier safety rules, safety chains are not required - not sure why, guess "safe" has different meanings depending on who is paying the $$$. In the past, there were no safety-chain requirements for gooseneck trailers, that is why in our area you see so many older trucks with no safety-chain hooks on the hitch, and lots of trailers with no hooks on the neck.
One of the state reps, Brimer I think, had put out a bill to amend the code so goosenecks were exempted but I don't know whether it passed. One of the big problems where "safety" is concerned, is that what is considered "safe" today may become illegal tomorrow. The Texas code is amended all the time, for instance when I bought my truck in 2000, you didn't have to wear a seatbelt in a 1-ton. They changed the code without much discussion, and all of a sudden you are illegal if you don't wear one. Nasty surprise for the folks who got a ticket after the law change, "ignorance of the law is no excuse" but then again most of us are not full-time lawyers studying the thousands of bills that get spurted out of the Legislature every session. If you read the transportation code in Texas closely, there are a heck of a lot of ways to run afoul of the law nowadays - Tennessee is probably the same way.
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§ 545. 410. Towing Safety Chains
(a) An operator of a passenger car or light truck may not draw a trailer, semitrailer, house trailer, or another motor vehicle unless safety chains of a type approved by the department are attached in a manner approved by the department from the trailer, semitrailer, house trailer, or drawn motor vehicle to the drawing vehicle. This subsection does not apply to the drawing of a trailer or semitrailer used for agricultural purposes.
(b) The department shall adopt rules prescribing the type of safety chains required to be used according to the weight of the trailer, semitrailer, house trailer, or motor vehicle being drawn. The rules shall:
(1) require safety chains to be strong enough to maintain the connection between the trailer, semitrailer, house trailer, or drawn motor vehicle and the drawing vehicle; and
(2) show the proper method to attach safety chains between the trailer, semitrailer, house trailer, or drawn motor vehicle and the drawing vehicle.
(c) Subsection (b) does not apply to trailers, semitrailers, or house trailers that are equipped with safety chains installed by the original manufacturer before the effective date of the rules.
(d) This section does not apply to a trailer, semitrailer, house trailer, or drawn motor vehicle that is operated in compliance with the federal motor carrier safety regulations.
(e) In this section, "safety chains" means flexible tension members connected from the front of a drawn vehicle to the rear of the drawing vehicle to maintain connection between the vehicles if the primary connecting system fails.
Acts 1995, 74th Leg. , ch. 165, § 1, eff. Sept. 1, 1995. Amended by Acts 1997, 75th Leg. , ch. 165, § 30. 113(a), eff. Sept. 1, 1997.
Amended by Acts 1999, 76th Leg. , ch. 1357, § 1, eff. Sept. 1, 1999.