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Gen-Y Shock Absorbing 5TH Wheel To Gooseneck Pin Box Replacing Lippert Roto-Flex 1621 Pin Box

Question:

Hello! I would like to replace my 5th wheel pinbox with a gooseneck pin box. Ive attached pictures of what I have. Will this gooseneck pin box work for me? GY63FR Thanks!

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Expert Reply:

The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY63FR will not fit on your 5th wheel that has the Lippert Trail Air Roto-Flex pin box. Your pin box uses the 1621 mounting bolts and this pin box is a replacement for Fabex 665 and M&M 665 5th-wheel pin boxes.

There are several Gen-Y replacements that will work with your 5th wheel. You need to ensure that you get the correct pin box based on your trailers weight. If you need help determining the correct one please let me know what 5TH wheel camper you have.

1,000-2,000lbs pin weight/18,000lbs maximum trailer weight # GY56FR
1,500-3,500lbs pin weight/21,000lbs maximum trailer weight # 325-GH-8045
3,500-5,500lbs pin weight/25,000lbs maximum trailer weight # GY66FR
3,500-5,500lbs pin weight/30,000lbs maximum trailer weight # GY36FR

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Gregory M

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