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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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Up to 38,000 lbs. GTW / 9,500 lbs. vertical load with included 2-5/16" ball
Up to 40,000 lbs. GTW / 10,000 lbs. vertical load when used with 3" ball (#60694)
Up to 38,000 lbs. GTW / 9,500 lbs. vertical load with included 2-5/16" ball
Finish: Blank
Gross Trailer Weight (GTW): 38,000 LB
Material: Carbon Steel
Capacity: 9,500 LB
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Experience powerful, reliable towing with the CURT PowerHaul™ Double Lock Gooseneck Hitch. Built for both professional haulers and weekend adventurers, this hitch delivers heavy-duty performance, making every towing job safer, smoother, and more controlled. Capable of handling up to 38,000 lbs. GTW and 9,500 lbs. vertical load with the included 2-5/16" ball and up to 40,000 lbs. GTW and 10,000 lbs. vertical load when paired with the optional 3" ball (#60694), the PowerHaul is ready for heavy trailers, construction equipment, and livestock transport. Installation is simple and designed for a single person, requiring no lowering of exhaust or spare tire, no welding, and no bed removal. The center locator system guarantees precise ball placement, so every hitching operation is safe, accurate, and worry-free. Security and convenience are at the forefront of the design. Double locking pins protect both the trailer and the ball, while the removable flip-and-store ball frees up truck bed space for gear, tools, or recreational equipment. The heavy-duty 3/8" handle and spring-loaded 5/8" safety chain loops provide dependable, long-lasting performance on every journey. Built to last, the PowerHaul meets SAE J2638 safety standards, features a rust-resistant liquid A-coat finish, and is proudly designed, welded, and coated in Wisconsin. With a limited lifetime warranty (one year on finish and parts), this double-lock gooseneck hitch gives you the strength and confidence to take on your toughest towing projects, whether you’re hitting the job site, transporting livestock, or cruising the open road with your trailer in tow.
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 888-634-9494Limited lifetime warranty (one-year finish, one-year parts)
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8 compatible vehicles
| Year | Make & Model | Style | Notes |
|---|---|---|---|
| 2020 - 2026 | Chevrolet Silverado 2500 HD | — | Drilling Required - Installation Time - |
| 2020 - 2026 | Chevrolet Silverado 3500 HD | Crew Cab Pickup · 4-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | Chevrolet Silverado 3500 HD | Extended Cab Pickup · 4-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | Chevrolet Silverado 3500 HD | Standard Cab Pickup · 2-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | GMC Sierra 2500 HD | — | Drilling Required - Installation Time - |
| 2020 - 2026 | GMC Sierra 3500 HD | Crew Cab Pickup · 4-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | GMC Sierra 3500 HD | Extended Cab Pickup · 4-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | GMC Sierra 3500 HD | Standard Cab Pickup · 2-Door | Drilling Required - Installation Time - |
The CURT 60704 PowerHaul Double Lock Gooseneck Hitch, Fits Select Chevrolet Silverado 2500 HD, 3500 HD, GMC Sierra 2500 HD, 3500 HD (Part #BKDK60704) 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 60704 PowerHaul Double Lock Gooseneck Hitch, Fits Select Chevrolet Silverado 2500 HD, 3500 HD, GMC Sierra 2500 HD, 3500 HD (Part #BKDK60704) is designed to fit the 2020-2026 Chevrolet Silverado 2500 HD.
The CURT 60704 PowerHaul Double Lock Gooseneck Hitch, Fits Select Chevrolet Silverado 2500 HD, 3500 HD, GMC Sierra 2500 HD, 3500 HD (Part #BKDK60704) fits the following vehicles: 2020-2026 Chevrolet Silverado 2500 HD; 2020-2026 Chevrolet Silverado 3500 HD; 2020-2026 GMC Sierra 2500 HD; 2020-2026 GMC Sierra 3500 HD. Always verify your specific year, make, and model before ordering.
The CURT 60704 PowerHaul Double Lock Gooseneck Hitch, Fits Select Chevrolet Silverado 2500 HD, 3500 HD, GMC Sierra 2500 HD, 3500 HD (Part #BKDK60704) Drilling is required for installation. Typical installation time is . Basic hand tools are typically all you need.
The CURT 60704 is a bed-mounted gooseneck hitch with a double-lock gooseneck ball rated at 38,000 lbs. It features a 2-5/16" ball, a locking handle mechanism, and safety chain attachment points. The hitch is designed for pickup trucks and includes a torque adapter for hard-to-reach fasteners.
The manual mentions both short bed and long bed models and includes specific instructions for short bed models regarding turning clearance between the front of trailers and the truck cab. However, the manual does not list specific vehicle makes, models, or years. Contact CURT Manufacturing at 877-287-8634 or visit curtmfg.com to confirm fitment for your specific truck.
The manual states that removing the spare tire may aid in installation but is not required. This suggests the hitch can be installed with the spare tire in place, though removal may make the work easier. If you choose to remove the spare tire during installation, you must reinstall it after completing the hitch installation (Step 16).
The manual states that lowering the exhaust on some models may be required to allow room for the center section and attachment plates. Whether your truck requires exhaust lowering depends on your specific vehicle model and exhaust configuration. Inspect the clearance before installation; if the exhaust interferes with the center section, it will need to be lowered.
There must be a minimum clearance of 6 inches between the bottom of the trailer overhang and the top of the box sides. Additionally, on short bed models, you must verify adequate turning clearance between the front of all trailers and the truck cab. Use the cab-to-trailer clearance calculation provided in the manual (page 3) to confirm your specific setup will not cause interference.
Required tools are: ratchet, wrenches (8mm), torque wrench, cutting fluid, drill, sockets (3/4", 5/16", 8mm, 10mm, 13mm), drill bits (3/16", 5/8", 11/16"), hole saw (4"), rust inhibitor, ear protection, and safety glasses. The manual rates installation difficulty as 'Difficult' and notes that proper tools will improve quality and reduce installation time.
The kit includes 6 hex bolts (5/8"-11 x 1-3/4"), 12 carriage bolts in various sizes, 19 nuts (serrated-flange, center lock, and nylon lock), 4 U-bolt springs, 2 square u-bolts (5/8"), 2 fishwires (5/8"), spacers, washers, a compression spring (7.5 lb), U-shaped edging, and a torque adapter (7/8"). See the Hardware List on page 1 for complete quantities and specifications.
Yes. The kit includes one 7/8" torque adapter (Item 10 in the Hardware List). This adapter is used to access hard-to-reach 5/8" fasteners with your torque wrench, as shown in Step 9 of the installation instructions.
The manual does not mention battery disconnection. However, Step 2 requires removing the wire harness bracket from the steel cross member using a 10mm socket. If you are uncomfortable working near electrical components, consult a professional installer or contact CURT at 877-287-8634.
Yes. Step 3 requires removing four (4) screws attaching the heat shield above the rear axle using a 13mm socket. The manual states that all models require modification or removal of heat shields. Save the screws and return the heat shield to the vehicle owner after removal.
Fishwiring is a technique used to guide bolts and spacers through the truck frame rails without losing them inside the frame. Insert the coiled end of the fishwire tool through the hitch mounting hole and out the access hole. Pass the coiled end through a spacer and thread a bolt into the coil, then kink the wire to keep the spacer separate from the bolt. Pull the fishwire, spacer, and bolt through the frame and out the mounting hole. This technique is required for the CURT 60704 installation.
The installation sequence is: (1) Remove spare tire if needed and lower exhaust if required; (2) Remove wire harness bracket; (3) Remove heat shield; (4) Install center attachment plates with carriage bolts; (5) Raise center section into position; (6) Install frame attachment plates from under truck; (7) Install hex bolts connecting frame and center attachment plates; (8) Tighten fasteners in specified order; (9) Torque all fasteners to specification; (10) Drill pilot hole for ball; (11) Drill 4" hole through bed and install rubber edging; (12) Drill holes for safety chains; (13) Install safety chain u-bolts; (14) Insert cast lock pin; (15) Install handle; (16) Reinstall spare tire and wire harness bracket.
Yes. Steps 4 through 7 require loosely installing all fasteners before final tightening. Specifically: loosely install the four (4) 5/8" hex flange nuts in Step 5, loosely install the carriage bolts and seven (7) 5/8" hex flange nuts in Step 5, loosely install frame attachment plates in Step 6, and loosely install the six (6) 5/8" hex bolts in Step 7. Final tightening occurs in Step 8 in a specific order, followed by torque specification application in Step 9.
Tighten fasteners in this order: (1) Four (4) 5/8" vertical center section fasteners; (2) Seven (7) 5/8" horizontal center section fasteners; (3) Six (6) 5/8" hex bolts; (4) Two (2) 5/8" frame attachment plate fasteners; (5) Remaining 1/2" fasteners. After tightening in this sequence, apply final torque specifications: 110 ft-lb for all 1/2" fasteners and 150 ft-lb for all 5/8" fasteners.
The center locator/trim shield must be inserted into the top of the center section cylinder before the center section is installed (noted in Step 4). This shield serves as a guide for drilling the pilot hole for the ball in Step 10. The shield remains in place during operation.
In Step 5, after the center section is aligned and the vertical bolts are loosely installed, place the latch plate against the rear of the center attachment plates as shown in the assembly diagram on page 2. Then loosely install the four (4) 5/8" x 1-3/4" carriage bolts into the rearward side of the center and three (3) 1-1/2" bolts into the forward holes, followed by seven (7) 5/8" hex flange nuts.
Yes. Drilling is required. The installation requires drilling a 3/16" pilot hole from underneath the truck bed through the center locator/trim shield (Step 10), then drilling a 4" hole through the bed using a hole saw with the pilot hole as a guide (Step 10). Additionally, four (4) 3/16" holes must be drilled through the truck bed for safety chains (Step 11). The manual recommends drilling a small pilot hole prior to the 3/16" holes to ease the process.
Drill a 4" hole through the truck bed using a hole saw. First, drill a 3/16" pilot hole from underneath the truck bed through the hole in the center locator/trim shield (Step 10). Use this pilot hole as a guide for the 4" hole saw. After drilling, install the CM-UE1 rubber edge trim around the edge of the cut hole and trim to length.
Using the center section as a template, drill four (4) holes through the truck bed for the safety chains using a 3/16" drill bit (Step 11). The manual recommends drilling a small pilot hole prior to the 3/16" hole to ease the process, and notes that center punching the bed from below and drilling from above may be preferred. After drilling, deburr the holes and spray exposed metal with rust inhibitor.
You must drill a 4" hole through the truck bed for the gooseneck ball (Step 10) and four (4) 3/16" holes for safety chains (Step 11). The manual also notes that on some models, you may need to use pliers to bend the metal flange below the bed outward to allow the handle room to move without interference (Step 14). No other trimming or cutting is mentioned as required.
Yes. In Step 12, after installing the safety chain u-bolt assemblies, you must ensure they sit flat when in the lower position and slide easily without binding. Enlarge holes as needed for proper operation. After enlargement, deburr the holes and spray exposed metal with rust inhibitor.
Torque all 1/2" fasteners to 110 ft-lb. Torque all 5/8" fasteners to 150 ft-lb. Use the supplied 7/8" torque adapter for hard-to-reach 5/8" fasteners. The manual emphasizes that proper torque specifications must be used to help prevent damage to the product or vehicle.
The gooseneck ball is rated at 38,000 lbs. However, you must never exceed the vehicle manufacturer's recommended towing capacity. The actual towing capacity depends on your specific truck's capabilities, not the hitch rating.
The CURT 60704 features a double-lock gooseneck ball with a 2-5/16" diameter. The ball is rated at 38,000 lbs.
Operation involves three steps: (1) Place the handle in the unlocked position by pulling it out as far as possible and rotating it clockwise; (2) Insert the ball into the desired position in the cylinder by aligning the ball groove with the cylinder pin (rotate the ball until it drops into place if not aligned); (3) Place the handle into the locked position by rotating it counter-clockwise until the locking pin snaps back into position. Never operate the vehicle with the handle in the unlocked position.
Before towing the first time, perform these checks: (1) When the ball is in stored position, verify the inverted ball will not interfere with the top of the differential when hauling heavy loads (especially important on 2-wheel drive models); (2) Verify adequate turning clearance between the truck cab/box corners and trailer(s); (3) Check truck box clearance—minimum 6" between the bottom of trailer overhang and top of box sides; (4) Verify all hardware is torqued to proper specification; (5) Verify trailer safety chain length has only enough slack to allow full turning without interference; (6) Verify trailer attachments to safety chain loops are secure and cannot be shaken free during towing.
Never exceed the vehicle manufacturer's recommended towing capacity. Vehicle performance (braking, handling, acceleration, turning radius) can be drastically affected by the trailer—allow additional time and space for stopping, changing lanes, passing, and turning. Severe bumps can damage the towing system; avoid or drive slowly over rough terrain. Never operate the vehicle with the handle in the unlocked position. On short bed models, verify adequate turning clearance between the front of all trailers and the truck cab.
Keep the gooseneck ball, receiver, and trailer coupler lubricated regularly using silicone spray or equivalent to prevent wear and rust. Keep the gooseneck ball, receiver, and trailer coupler free of dirt and other foreign debris. Failure to maintain your towing system could result in poor performance and/or catastrophic failure. Periodic inspection of the trailer hitch should be performed to ensure all mounting hardware remains tight and structural components are secure.
After installation, verify all hardware is torqued to the proper specification (110 ft-lb for 1/2" fasteners, 150 ft-lb for 5/8" fasteners). Check that the center locator/trim shield is properly installed in the center section cylinder. Verify the handle operates smoothly and locks securely. Inspect all drilled holes for proper size and deburring. Confirm the rubber edge trim (CM-UE1) is installed around the 4" bed hole. Ensure safety chain u-bolts sit flat and slide easily without binding. Before towing, perform all checks listed in the 'Before Towing the First Time' section.
The CURT 60704 is designed for pickup trucks with both short and long beds. Specific vehicle makes, models, and years are not listed in the manual. Contact CURT at 877-287-8634 or visit curtmfg.com to confirm fitment for your truck.
Yes. Step 3 requires removing four (4) screws from the heat shield above the rear axle using a 13mm socket. The manual states all models require heat shield modification or removal.
Lubricate the gooseneck ball, receiver, and trailer coupler regularly with silicone spray. Keep all components free of dirt and debris. Perform periodic inspections to ensure all hardware remains tight and structural components are secure.
Some models may require using pliers to bend the metal flange below the bed outward to allow the handle room to move without interference (Step 14). If bending the flange does not resolve the issue, verify that the center section is properly aligned and that the hole in the center section is not obstructed.
In Step 12, ensure the u-bolts sit flat when in the lower position. If they bind or do not slide easily, enlarge the holes as needed for proper operation. After enlargement, deburr the holes and spray exposed metal with rust inhibitor.
In Step 5, slide the center section into the center attachment plates to allow the vertical 5/8" carriage bolts to align properly with the center section holes. Once aligned, slide both the plate and center section together. If alignment is difficult, verify that the center locator/trim shield is properly installed in the top of the center section cylinder (as noted in Step 4) and that the center attachment plates are positioned correctly on the driver and passenger sides.
In Step 2 of the Operation section, insert the ball into the desired position in the cylinder by aligning the ball groove with the cylinder pin. If the ball and pin are not aligned, simply rotate the ball until it drops into place. In Step 3, place the handle into the locked position by rotating it counter-clockwise until the locking pin snaps back into position. If the pin does not snap back, verify that the ball is fully seated in the cylinder.
Use the cab-to-trailer clearance calculation provided on page 3 to determine if your trailer will interfere with your truck cab. The calculation accounts for cab-to-ball center distance (X), half the trailer width (Y), and any coupler overhang (W). If the result (Z) is negative, the trailer will interfere. On short bed models, verify adequate turning clearance between the front of all trailers and the truck cab before towing. You may need to use a different trailer or adjust your towing setup.
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