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Cecilia, KY ©® | A ground bearing trailer has a hyd foot in front of the trailer to unhook the neck, has to use it to unhook and has to be solid enough to raise trailer , once hooked up trailer height is set . Non ground bearing trailer has cylinders in neck to unhook no need for a solid foundation to unhook as with the ground bearing and you can change ride height as needed like going over RR tracks or anything with a hump as in different road height's .
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