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  1. Trailer Hitch Ball
  2. CURT
  3. Gooseneck Hitch Ball
  4. 2-5/16 Inch Diameter Ball
  5. Puck System
  6. Standard Ball
Curt RockerBall Multi-Fit Ball Kit w/ 4" Offset for Factory Gooseneck Hitches - 30K
$50 Mail-In Rebate on Select Curt Premium Gooseneck Balls.
CURT

Curt RockerBall Multi-Fit Ball Kit w/ 4" Offset for Factory Gooseneck Hitches - 30K

Part Number: C78ZV
$499.90
Retail:$658.95
You Save: $159.05
Trailer Hitch Ball

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Get a smooth, comfortable ride when towing your equipment or livestock trailer. This cushioned, shock-absorbing gooseneck ball with integrated safety chain loops installs quickly and easily into your truck's OEM puck system. Great Prices for the best trailer hitch ball from CURT. Curt RockerBall Multi-Fit Ball Kit w/ 4" Offset for Factory Gooseneck Hitches - 30K part number C78ZV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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CURT Trailer Hitch Ball - C78ZV

  • Gooseneck Hitch Ball
  • 2-5/16 Inch Diameter Ball
  • Puck System
  • Standard Ball
  • 30000 lbs GTW
  • Chrome-Plated Steel
  • CURT
  • 4 Inch Offset

Get a smooth, comfortable ride when towing your equipment or livestock trailer. This cushioned, shock-absorbing gooseneck ball with integrated safety chain loops installs quickly and easily into your truck's OEM puck system.


Features:

  • Gooseneck hitch ball with integrated safety chain loops works with your truck's factory puck system
    • Fits select Chevrolet, Ford, GMC, Ram, and Nissan puck systems
    • Also fits Curt OEM-style gooseneck hitches
  • Shock-absorbing ball provides a smooth ride for you and your towed equipment or livestock
    • Polyurethane cushion dampens chucking, jarring, bumps, and vibrations
    • Built-in pivot action compensates for chucking from sudden braking or accelerating
    • Virtually maintenance-free with no airbags or bearings to service
  • All-in-one unit is easy to install and remove with quarter-turn anchoring system
  • Anti-rotation arms and adjustable anchors eliminate chucking between frame and pucks
  • 4" Rearward offset provides additional clearance between your truck cab and trailer
    • Make sharper turns
    • Fully open truck bed while hooked up
  • Carbide black powder coat finish on frame and chrome plating on ball resists corrosion
    • Constructed of sturdy, forged steel
  • Tested for safety to meet SAE specifications


Specs:

  • Gross towing weight: 30,000 lbs
    • Capacity is limited to that of your hitch
  • Ball size: 2-5/16"
  • Offset: 4"
  • Rise above bed: 8"
  • Limited lifetime warranty


Note: The hitch ball will sit 1-1/2" higher than a standard hitch ball due to the shock absorbing base.


Smooth Ride For Your Livestock

Towing work equipment presents its own challenges, but when it comes to transporting livestock, that's a whole other ball game. Without some kind of shock absorbtion that journey over bumps, potholes, and uneven terrain is going to disturb your animals and cause them anxiety. The Curt RockerBall cushioned gooseneck ball creates a safer and smoother ride for your livestock by utilizing cushioning technology to absorb some of that shock.


Shock Absorbing ShockDrop Technology

The Curt RockerBall cushioned gooseneck hitch ball features Curt's innovative ShockDrop technology, which is engineered to suppress jerking, jarring, and chucking while you're towing. A durable, polyurethane material is built into the unit and absorbs excess shock so that it doesn't transfer from the truck to your trailer or vice versa. As the head teeters back and forth on the integrated pivot point, the fore-aft motion that you experience during sudden braking or acceleration is decreased. This means that the uncomfortable jerking feeling associated with starting and stopping while towing is dramatically lessened.


The overall result is increased comfort as you tow, as well as less wear and tear on your towing setup. This means less stress on you, your truck and trailer, and your precious cargo.



60668 Curt Rocker Ball MultiFit OEM Puck System Gooseneck Ball with 4" Offset

Installation Details C78ZV Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

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See what our Experts say about this CURT Trailer Hitch Ball

  • Availability of Raised Gooseneck Ball for 2024 GMC With OEM Prep Package
    None of the options for the prep package are specifically designed to add height. Depending on the ball you have now you might be able to get a little more height out of the B&W Ball and Safety Chain Kit # BWGNXA2061. The installed height of this gooseneck ball is 5-3/4". If you can stand to have an offset then the Curt RockerBall Multi-Fit Ball Kit w/ 4" Offset # C78ZV actually sits the highest. This has an overall height of 11-3/4" so it will sit approximately 9" above the bed when...
    view full answer...
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  • Recommended Offset Gooseneck Ball Kit for a 2024 Ram 3500
    Hey Eric, the Curt Multi-Fit Ball Kit w/ 4" Offset for Chevy/Ford/GMC/Nissan Underbed Gooseneck Hitch # C68ZV is not going to work with your Ram, unfortunately. This one is only going to work for select YMM (Year Make Model) Ford 250-450s, GMC Sierra 2500-3500s, Chevy Silverado 2500-3500s, and Nissan Titan XDs. You'd instead want to check out the Curt RockerBall Multi-Fit Ball Kit w/ 4" Offset for Chevy/Ford/GMC/Nissan Gooseneck Hitch # C78ZV which is going to be the same thing you're...
    view full answer...
  • Reocmmended Curt Gooseneck Hitch for a 2025 GMC Sierra Short Bed
    Richard, I'm going to assume there was a typo with the bed length, and you meant to put 61" or 6'1" making this a short bed. If that's the case, then unfortunately the Curt RockerBall Multi-Fit Ball Kit w/ 4" Offset for Factory Gooseneck Hitches # C78ZV is not going to work. Instead, for the short bed you are going to need Curt Ball and Safety Chain Loop Kit for GM/Chevy/Ford/Nissan Underbed Gooseneck Trailer Hitch # C60692 if you have the prep package, or the Curt EZr Double Lock Underbed...
    view full answer...
  • Recommended Gooseneck Hitch Ball For A 2024 Ram 3500 With OEM Puck System
    Hey Andy, The Curt 4" Offset Ball for Double-Lock Gooseneck Hitch # C602 unfortunately isn't a fit for a factory gooseneck/puck system, but you can use the Curt Ball and Safety Chain Loops Kit for Ram Underbed Gooseneck Hitch - 30K # C60618. If you're looking for an offset ball for some extra turning clearance then you can go with one of the following offset ball options: Gen-Y Hitch - 5" Offset # GY83XR Curt RockerBall Multi-Fit Ball Kit w/ 4" Offset # C78ZV Curt Multi-Fit Ball Kit...
    view full answer...
  • Which Gooseneck Ball Should I Use for a 2025 GMC Sierra AT4 2500 w/ the OEM Puck System?
    Congrats on the new truck! The Curt RockerBall Multi-Fit Ball Kit item # C78ZV will work great with the puck system in your new 2025 Sierra 2500. It's been specifically designed to work with all the OEM puck systems so the difference in positioning over the axle won't affect it's functionality or capacity. It also has built in chain loops. If you do not have the 8' bed I would recommend using the Curt RockerBall item # C78ZV over the standard Curt Ball and Safety Chain Loop Kit item #...
    view full answer...
  • Does Curt RockerBall Multi-Fit Ball Kit Need Additional Safety Chain Loops
    Hi Chris; I'm not seeing that under the tech tips no matter how I search for it but I'm guessing it was tied to an older variation/part number so it is still showing up. I'll put in a note to get it removed so there is no confusion, thanks for pointing it out. To be clear, you do not need any additional safety chain loops for the # C78ZV since they are integrated.
    view full answer...

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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Dustin K
Video Edited:
Dustin K
Employee Steven C
Installed by:
Steven C
Employee Wilson B
Updated by:
Wilson B

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