There is not a cross reference for 5th Wheel RV's that allows me to look up what pin box you have on your DRV Mobile Suites 40 KSSB4 5th Wheel. To replace your pin box you need to know what bolt pattern you have, this is expressed as a 4 digit number. Please look on the currently installed pin box for identification markings/stickers to discover what pin box you currently have. Note the linked article that will step you through how to measure the bolt pattern if there are no identifying... view full answer...
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