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Locating Correct Reese Goose Box for 2020 Keystone Carbon 387


I’m looking at getting a 2020 keystone carbon 387 and I was wanting to install a Reese goosebox, but don’t know what hitch number I have. Is there a way to tell what hitch I have?


Expert Reply:

I was able to determine that the 2020 Keystone Carbon 387 comes equipped with a Rota Flex pin box but wasn't able to track down the exact model number. This info is typically located right on the pin box itself with an ID sticker. If you contact the dealer you are looking to purchase the toy hauler from they should be able to provide you with this information.

If you can then tell me what model Rota Flex is installed, I can determine the bolt pattern on the trailer's stock wing brackets to verify the correct Reese Goose Box replacement.

Just as an example the Reese Goose Box # RP94720 you were looking at is designed to replace the Lippert 1621, 1621HD, and 0719 pin boxes, which could potentially have the same bolt pattern as the Rota Flex on the Keystone Carbon depending on the model.

expert reply by:
Chris R

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