What is the GM puck system for fifth wheel hitches?

GM's puck system is a factory towing prep option on Chevrolet Silverado HD and GMC Sierra HD trucks. It installs four puck-style mounting points in the truck bed, allowing compatible fifth wheel hitches and gooseneck balls to mount without drilling. GM calls it the Fifth Wheel/Gooseneck Prep Package.

Which Chevy and GMC trucks have factory pucks?

GM's puck system is available on Silverado 2500HD, Silverado 3500HD, Sierra 2500HD, and Sierra 3500HD trucks. It's an optional package, not standard. It became available starting around the 2015-2016 model years on the current-generation HD trucks.

Are Chevy and GMC puck systems the same?

Yes, Chevrolet Silverado HD and GMC Sierra HD trucks use the exact same puck system. They share the same platform and bed design, so any puck-mount hitch that fits a Silverado 2500HD will also fit a Sierra 2500HD of the same generation and bed length.

What year did GM start offering the puck system?

GM introduced their factory puck prep package on HD trucks around the 2015-2016 model year with the K2XX platform Silverado/Sierra HD. The system continued with the T1XX platform (2020+). Earlier GM HD trucks don't have factory pucks and require aftermarket mounting solutions like rails or under-bed kits.

GM/Chevy Puck System

Q: How do I identify GM pucks in my truck bed?

Look for four round plastic covers or exposed mounting holes in the front half of your truck bed, arranged in a rectangle pattern. GM pucks look similar to Ford's system. Check your window sticker for 'Fifth Wheel/Gooseneck Prep Package' or RPO code UY9. You can also run your VIN through GM's build data lookup.

Q: What fifth wheel hitches work with GM pucks?

Most OE-compatible puck-mount hitches work with GM's system. Popular choices include the B&W Companion OEM, CURT Q20 and Q24, and PullRite Super 5th OE Series. When shopping, look for hitches listed as compatible with GM/Chevy puck systems. Always verify your specific truck year and model.

Written by a towing industry expert

The short answer: GM's puck system is different from Ford's. Here's which trucks have it and what hitches fit.

What is GM's Puck System?

GM's factory fifth wheel/gooseneck prep package installs mounting points in your truck bed that accept drop-in hitches. Same concept as Ford and Ram — easy installation, no drilling, clean bed when not towing.