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Select your vehicle to confirm this part fits.
2020 - 2026 Chevrolet Silverado 3500 HD
Confirmed to Fit
2020 - 2026 Chevrolet Silverado 3500 HD
Confirmed to Fit
2020 - 2026 Chevrolet Silverado 3500 HD
Confirmed to Fit
2020 - 2026 GMC Sierra 3500 HD
Confirmed to Fit
2020 - 2026 GMC Sierra 3500 HD
Confirmed to Fit
2020 - 2026 GMC Sierra 3500 HD
Confirmed to Fit

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Always the correct part
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Requires Chevrolet, Ford, GMC, Nissan or Ram puck system for installation (Chevrolet / GMC long-bed 2020-current only)
Patent pending
Towing capacity is limited to the lowest-rated towing component
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Finish: Blank
Gross Trailer Weight (Pounds): 30,000 LB
Vertical Load (Pounds): 7,500 LB
Ball Diameter (Inches): 2-5/16 IN
Installation Time Exact (Minutes): 0
The CURT RockerBall multi-fit OEM puck system gooseneck ball with 4" offset features exclusive ShockDrop technology that cushions your load and delivers a smoother, more comfortable towing experience by reducing jerking and jarring when towing heavy loads on rough roads. The unique offset pin of the RockerBall is designed to dampen vertical chucking and fore-to-aft motion during starts and stops, ensuring a steady and less turbulent ride. The additional 4" rearward offset also improves the clearance between your truck bed and trailer, particularly benefiting short-cab pickup trucks with limited clearance. Engineered for seamless installation to accommodate hardworking pickup trucks, the CURT Rockerball multi-fit OEM puck system gooseneck ball with 4" offset features a patented quarter-turn installation mechanism. This innovative design allows for quick and convenient installation of the ball into the gooseneck hitch, providing full truck bed functionality when needed. When it's time to free up the truck bed for other towing or cargo hauling purposes, simply lift the lever and give it a quarter-turn twist to unlock the retention balls. This enables easy removal and convenient storage. With a towing capacity of up to 30,000 lbs. gross trailer weight and 7,500 lbs. vertical load, this kit is constructed from forged and machined steel alloy, ensuring exceptional strength and durability to handle even the largest of gooseneck trailers. It's important to note that these weight ratings are limited by the lowest-rated component within the entire towing system, including the vehicle itself. The kit includes a 2-5/16" diameter ball designed to perfectly fit 2-5/16" gooseneck couplers. It is compatible with the truck bed puck system found on Chevy, Ford, GMC, Nissan, and Ram trucks equipped with the towing prep package, as well as CURT OEM-style gooseneck hitches (Chevrolet / GMC long-bed 2020-current only).

CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-9494Lifetime
14 compatible vehicles
| Year | Make & Model | Style | Bed | Notes |
|---|---|---|---|---|
| 2020 - 2026 | Chevrolet Silverado 2500 HD | — | 8'2" Bed | With 5th wheel prep package |
| 2020 - 2026 | Chevrolet Silverado 3500 HD | Crew Cab Pickup | 8'2" Bed | With 5th wheel prep package |
| 2020 - 2026 | Chevrolet Silverado 3500 HD | Extended Cab Pickup | 8'2" Bed | With 5th wheel prep package |
| 2020 - 2026 | Chevrolet Silverado 3500 HD | Standard Cab Pickup | 8'2" Bed | With 5th wheel prep package |
| 2013 - 2027 | Ford F-250 Super Duty | — | — | With 5th wheel prep package |
| 2013 - 2027 | Ford F-350 Super Duty | — | — | With 5th wheel prep package |
| 2013 - 2026 | Ford F-450 Super Duty | — | — | With 5th wheel prep package |
| 2020 - 2026 | GMC Sierra 2500 HD | — | 8'2" Bed | With 5th wheel prep package |
| 2020 - 2026 | GMC Sierra 3500 HD | Crew Cab Pickup | 8'2" Bed | With 5th wheel prep package |
| 2020 - 2026 | GMC Sierra 3500 HD | Extended Cab Pickup | 8'2" Bed | With 5th wheel prep package |
| 2020 - 2026 | GMC Sierra 3500 HD | Standard Cab Pickup | 8'2" Bed | With 5th wheel prep package |
| 2016 - 2024 | Nissan TITAN XD | — | — | With 5th wheel prep package |
| 2013 - 2026 | Ram 2500 | — | — | With 5th wheel prep package |
| 2013 - 2026 | Ram 3500 | — | — | With 5th wheel prep package |
The CURT RockerBall Multi-Fit OEM Puck System Gooseneck Ball with 4" Offset 60668 (Part #BKDK60668) fits the following vehicles: 2020-2026 Chevrolet Silverado 2500 HD; 2020-2026 Chevrolet Silverado 3500 HD; 2013-2026 Ford F-250 Super Duty; 2013-2026 Ford F-350 Super Duty; 2013-2026 Ford F-450 Super Duty; 2020-2026 GMC Sierra 2500 HD; 2020-2026 GMC Sierra 3500 HD; 2016-2024 Nissan TITAN XD; 2013-2026 Ram 2500; 2013-2026 Ram 3500. Always verify your specific year, make, and model before ordering.
The CURT RockerBall Multi-Fit OEM Puck System Gooseneck Ball with 4" Offset 60668 (Part #BKDK60668) is designed for 8'2" bed trucks. Check the fitment chart for your specific Chevrolet Silverado 2500 HD configuration.
The CURT RockerBall Multi-Fit OEM Puck System Gooseneck Ball with 4" Offset 60668 (Part #BKDK60668) fits 2020-2026 Chevrolet Silverado 2500 HD models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the CURT RockerBall Multi-Fit OEM Puck System Gooseneck Ball with 4" Offset 60668 (Part #BKDK60668) is designed to fit the 2020-2026 Chevrolet Silverado 2500 HD.
The CURT RockerBall Multi-Fit OEM Puck System Gooseneck Ball with 4" Offset 60668 (Part #BKDK60668) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The CURT 60668 is designed for Nissan, Ford, and GM 2020+ models, as well as Ram trucks. Your truck must have a factory gooseneck collar in the bed and bed puck mounts for the cross arms. If your truck has these factory components, the hitch is compatible. Consult your truck's owner manual or contact CURT Product Support at 877.287.8634 to confirm your specific model year and configuration.
The CURT 60668 includes two extension arm options: the short extension arm (#4) is used for Nissan, Ford, and GM 2020+ trucks, and the long extension arm (#5) is used for Ram trucks. The correct arm must be selected during assembly based on your vehicle manufacturer. Using the wrong arm may result in improper hitch geometry and coupling.
The CURT 60668 has a gross trailer weight (GTW) capacity of 30,000 lbs. and a vertical load capacity of 7,500 lbs. Never exceed your vehicle manufacturer's recommended towing capacity, as doing so may result in separation, damage to the hitch, vehicle, trailer, and serious injury or death.
You will need a ratchet, socket set, and torque wrench. The torque wrench is essential for properly securing all M10 hardware to the specified 35 ft-lbs. torque value.
The CURT 60668 includes: 1 cross arm driver side, 1 cross arm passenger side, 1 offset gooseball, 1 short extension arm, 1 long extension arm, 2 carriage bolts M10, 2 hex head bolts M10, 4 nylon lock nuts M10, and 6 flat washers M10. All fasteners are M10 size.
No. The CURT 60668 is installed by inserting the offset gooseball into the existing gooseneck collar in the truck bed and mounting the cross arms into the factory bed puck mounts. No bed removal is required.
When inserting the offset gooseball into the gooseneck collar, the arrow located on the side of the gooseball must point towards the cab of the vehicle. This ensures proper hitch geometry and coupling alignment.
No. After securing the extension arm with the two M10 hex bolts, four flat washers, and two nylon lock nuts, snug the hardware but do not fully tighten. Final tightening occurs in Step 5 after the extension arm is slid forward to meet the cross arms.
Unlock the handle on the passenger-side cross arm by removing the handle lock pin. Mount the cross arm assembly into the pucks in the truck bed, then close and secure the handle using the handle lock pin. Repeat this process for the driver-side cross arm. Note that the driver-side cross arm will overlap the passenger-side cross arm.
If the handles will not close with moderate pressure, the locking T-bolts require adjustment. Remove the cotter pin securing the castle nut above the handle, then loosen the castle nut 1/4-turn while pressing down on the T-bolt. Reattempt to close the handle. Repeat this process in 1/4-turn increments until the handle closes. Do not force the handle closed, as this may damage the locking bolt and handle, possibly resulting in trailer detachment.
Slide the extension arm forward until its face meets the flat of the cross arms. Secure it using two M10 carriage bolts, two M10 flat washers, and two M10 nylon lock nuts. Torque all M10 hardware to 35 ft-lbs. Ensure the extension arm does not rest on the truck bed; a minimum 1/4" gap is recommended.
All M10 hardware on the CURT 60668 must be torqued to 35 ft-lbs. This includes the carriage bolts, hex head bolts, and nylon lock nuts used throughout the assembly.
After installation, confirm that both locking bolts are engaged in the truck bed puck mounts and the castle nuts are secured with cotter pins. Ensure both handles are securely locked with the safety pin. Verify that the extension arm has a minimum 1/4" gap from the truck bed. All M10 hardware should be torqued to 35 ft-lbs.
Wax the hitch after installing to protect the finish. Regular waxing is recommended to add a protective layer. Use only mild automotive detergent to clean the product. Do not use dish detergent, abrasive cleaners, abrasive pads, wire brushes, or similar products that may damage the finish. Do not use polish or wax containing abrasives.
Never exceed your vehicle manufacturer's recommended towing capacity. Do not expose hands, body parts, or clothing anywhere between the truck and trailer. Never position yourself or others under the trailer's kingpin area during coupling and uncoupling, as improperly coupled trailers can separate and drop without notice. Extreme care should be observed to avoid serious injury to self, property, and observers.
The CURT 60668 fits Nissan, Ford, GM 2020+, and Ram trucks with factory gooseneck collars and bed puck mounts. Confirm your truck has these components before purchasing.
No drilling is required. The hitch uses existing factory gooseneck collar and bed puck mounts on your truck.
All M10 hardware must be torqued to 35 ft-lbs. Use a torque wrench to ensure proper tightening.
The CURT 60668 has a gross trailer weight capacity of 30,000 lbs. and a vertical load capacity of 7,500 lbs. Never exceed your vehicle manufacturer's towing capacity.
Use the short extension arm (#4) for Nissan, Ford, and GM 2020+ trucks. Use the long extension arm (#5) for Ram trucks.
Wax the hitch after installation and regularly thereafter. Clean with mild automotive detergent only. Do not use abrasive cleaners, pads, or wire brushes.
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Original price was $658.95. Current price is $559.95.




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