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Reese Hitch and Sidewinder Recommendation for 2019 GMC Sierra 3500 Short Bed with OEM Rail Kit  

Question:

Can you tell me what pin box model this is? S/N: 028-000213175 LCI Item #: 3372707 GVWR: 18,000

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Expert Reply:

Since we know you have a Rota-Flex pin box on your trailer we also know that there is a Sidewinder that can fit as a replacement. We do need to know more info though to determine which specific Sidewinder you need. You'll need to look for an LCI number like 1621, 1116, 1716 etc. and we'll know which is the correct fit.

If you have a Lippert 1621, 1621HD or 0719 you'd want the part # RP34FR.
If you have a Lippert 1116, 1716 or 0115 you'd want # RP77FR.

So the other part of this that gets interesting is that the rail kits for the short bed and long bed versions of your truck are different so in order to use a fixed hitch you'll have to use a rail kit adapter like the part # C47BR with a fixed hitch like the Reese M5 # RP30928.

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Jameson C
John B. profile picture

John B.

1/16/2019

Can you tell me what pin box model this is? S/N: 028-000213175 LCI Item #: 3372707 GVWR: 18,000

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JamesonC profile picture

Jameson C.

1/16/2019

I sent that info to Lippert and they informed me that you have a Lippert 1621 pin box so the correct part number is # RP34FR.
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Instructions

Instructions for C47BRInstructions for DM6194Instructions for RP30928Instructions for RP77FRInstructions for RP34FR
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