CURT 45144 RockerBall Cushion Hitch – 2-Inch Ball, 5-Inch Drop, 7,500 lb

CURT 45144 RockerBall is a cushioned trailer hitch assembly featuring ShockDrop technology to reduce jerking, jarring and vibration during towing. It fits a 2 x 2-inch receiver and provides a 5-inch drop for a matching 2-inch trailer coupler.

Ratings and specifications

• Manufacturer part number: CURT 45144
• Trailer ball diameter: 2 in
• Maximum gross trailer weight: 7,500 lb
• Maximum tongue weight: 750 lb
• Receiver opening: 2 x 2 in
• Drop: 5 in
• Construction: forged-steel ball and steel ball-mount assembly
• Finish: black powder coat on mount; chrome-plated ball
• Safety testing: SAE J684
• Warranty: limited lifetime; one-year finish and one-year parts coverage

Included components

CURT specifies this kit includes the 2-inch RockerBall #40047, the 5-inch-drop ball mount #45070 and the anti-rattle component #22321. The ball is part of the supplied RockerBall assembly; it is not a separate 1-inch threaded hitch-ball opening. Confirm the receiver, trailer coupler and ratings before towing.

Maintenance and installation

Grease the RockerBall assembly before initial use and periodically as directed in CURT's installation instructions. The installation sheet specifies 250 ft-lb for the 1-inch mounting bolt and 35 ft-lb for the 1/2-inch anti-rattle pin. Do not combine multiple shock-dampening products in the same towing setup. Always follow the supplied instructions and never exceed the lowest-rated towing component.