CURT RockerBall Cushion Hitch Ball Mount, 7,500 lbs 2-Inch Diameter, 2-In Shank, 3" Drop, Anti-Rattle Pin Model 45143 33-VO-98 The mounting tabs add 1"

The mounting tabs add 1" of length to each side of tank

GMC Sierra 2500 HD and 3500 HD and Nissan Titan XD (see application info verify fitment)

25X16 Model 272-3-02

and they feature an internal connecting rod that allows the lid to be opened from either side of the truck

Hammer Head Design w/Narrow Base

CURT RockerBall Cushion Hitch Ball Mount, 7,500 lbs 2-Inch Diameter, 2-In Shank, 3" Drop, Anti-Rattle Pin Model 45143 33-VO-98 The mounting tabs add 1"CURT RockerBall Cushion Hitch Ball Mount, 7,500 lbs 2 Inch Diameter, 2 In Shank, 3" Drop, Anti Rattle Pin Model 45143 The CURT RockerBall cushion hitch dynamically absorbs jerking and jarring from your trailer at the coupling point. The ball easily bolts onto the included trailer hitch ball mount, giving you increased comfort, enhanced control and extended longevity of your vehicle's systems. The RockerBall tow ball is engineered with ShockDrop