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Never seen one. All the oilfield stuff I have worked around also had the pin on the trailer/hitch on tow vehicle. Only difference I can see is that you would have to back under the trailer, lower it on pin then pull forward to lock? As compared to backing into the pin on a trailer?
And, welcome to the forum.
Joe
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2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired
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