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The Curt EZr Double Lock Underbed Gooseneck Hitch is made for serious towing. With a 30,000-lb gross towing weight and 7,500-lb tongue weight rating, it’s ready for heavy livestock, dump, or equipment trailers. The dual locking pin system keeps the 2-5/16" chrome-plated ball locked tight in place so you get a solid, confident connection that won’t shift under strain.

Once you’re finished towing, you can reclaim your full bed space in minutes. Just pull the handle in the wheel well to release the ball, flip it upside down, and drop it back in the hitch for storage. A rubber cover snaps over the opening to keep dirt and grime out, and everything sits below the bed surface for a clean, uncluttered look.
Installing this hitch is made simpler with the included Curt Center Locator tool. It guides where to drill the 4" hole for the ball and shows orange shavings when you’ve drilled far enough—no guesswork or measuring needed. The custom mounting kit bolts on with grade-8 hardware, requires no welding or bed removal, and makes it possible for one person to handle installation at home.



Built from high-strength, laser-cut steel and finished with a carbide black powder coat and zinc-plated locking parts, this hitch is made to last through years of heavy use. Spring-loaded safety-chain hookups are built right in for extra security. The result is a hitch that feels rock solid—like part of the truck frame—and stays that way through every haul.
Ratings & Reviews
Seems heavy duty but the brackets hit the u-bolts and spring top plates. Curt told me I must of installed them wrong. I don't think so
Nice clean look. Most importantly didn't have to lower exhaust. centering the hitch in the bed was easy because of the template provided. Although install did take longer than what was noted, it was fairly simple. Would definitely purchase again.
Excellent fit, install was about 3 hrs. Easy to follow instructions and customer service was a pleasure to deal with. Happy with my choice and would recommend this product.
I will say on a 6.5 bed with dual exhaust on my diesel is was snug fitting under the truck to bolt it together, but that’s a me problem not a curt problem. Fit and functionality was perfect no complaints at all.
Accurate install directions, fantastic fit and operates perfectly for my 5th wheel RV
Really quick turnaround.
Fit perfect very fast shipment thanks
good hitch, great people to work with
Everything was easy and best quality. Glad I went with you guys!
Have not attempted install yet but looks well made and straight fowrard instructions
2021 Sierra 2500 standard box. Item arrived pretty quick with all parts included and no damage.
Instructions for the install are, in my opinion, not very detailed and left me having to figure several things out on my own. Biggest pain was having to drop the fuel tank a few inches to access the hole in the driver-side frame rail to fish wire the one bolt for the side plate. Unsure why this info was missing as I would imagine anyone installing this on the same truck would have the same issue of not having enough clearance for the fish wire procedure. The front and rear rails are 0.25” in length different and are not labeled - be prepared to measure and appropriately install in the correct position with the holes closer to the bottom (this is poorly referenced in the instructions and leaves additional room for error and time). The install took me about 7 hours (no help).
Finished product is nice and sturdy. The ball ends up being about 4-5” forward the rear axle. I tried to find this info prior to purchasing, but could not. I use an extang hard tri-fold tonneau cover that does not flip fully up toward the cab and was concerned I would have to remove each time I hooked up a gooseneck. It appears that I will have to remove for most applications due to clearance issues, so less than ideal. Operates as intended and should bring many years of trouble free service.
lack of paperwork i.e. parts list install instructions
This thing is HEAVY! Need 2 people but don’t really have room . This one is just as difficult to install as the other 2 I’ve installed! Wish I had the factory hitch.
Went in well, works good, happy
Your installation instructions are lacking details weakest part of the product. Shipping could use work too box was destroyed and bolts were missing from the open package
Once hitch was in, and bolts replaced it towed fine
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Victoria H.
4/12/2025
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