If you want level towing with a weight distribution hitch, a drop or rise shank can help you achieve a flatter trailer tongue and steadier handling. This guide highlights top drop hitch options and explains who each product is best for. It covers tall or lifted trucks, standard pickups, and trailers prone to sway. Use the buying table below to compare fit and capabilities at a glance.
- Best for lifted trucks needing large drop or rise
- Better for standard SUVs towing lighter trailers
- Choose this if you want built-in sway control for a smoother ride
Deep Drop Trunnion Bar Weight Distribution Hitch (8K – 10K lbs, 30-5/8″ Bars)
The CURT deep drop model levels the tow vehicle and trailer by redistributing tongue weight. It uses a 2″ x 2″ deep drop shank designed for level towing with large, lifted trucks. The shank can be flipped for up to a 7″ drop or a 10-1/2″ rise. Best for owners of taller trucks who need substantial vertical adjustment to maintain an even ride height and stable hitch geometry.
Best for: Lifted trucks and vehicles with high ride height that require significant drop or rise to achieve level towing. Cautions: Flipping the shank changes the drop/rise balance, so verify alignment before towing.
CURT 17123 Weight Distribution Shank Only, 2″, 7″ Drop, 10-1/2″ Rise
The 17123 shank is designed for 2″ x 2″ receivers with a 5/8″ hitch pin hole and is compatible with CURT WDH heads. It offers adjustable height, flipping to provide up to 7″ of drop or 10-1/2″ of rise, with precise head-height options. Strong steel construction supports up to 15,000 lbs GTW and 1,500 lbs TW, depending on the rest of the system.
Best for: Users who already own a CURT WDW head and need robust vertical adjustment without changing the overall weight distribution. Cautions: The rating depends on the entire towing setup; ensure compatibility with the rest of your hitch system.
CURT 17063 Round Bar Weight Distribution Hitch with Sway Control, 14,000 lb
This setup distributes tongue weight across the tow vehicle and trailer to maintain level towing, with an included sway control kit to reduce trailer sway. It features continuous lubrication through integrated grease zerks for easier maintenance. Fabricated head and round steel spring bars provide heavy-duty performance with ratings typically around 10,000–14,000 lb GTW and 1,000–1,400 lb TW, limited by the lowest-rated component.
Best for: Trailers that experience minor to moderate sway and require a solid, all-around WDH with practical lubrication access. Cautions: Sway control kit is included but verify compatibility with your trailer’s hitch geometry.
MaxxHaul 51191 Weight Distribution Hitch – 11,500 lb
The MaxxHaul kit provides an all-in-one weight-distribution solution, including a preinstalled hitch ball, tapered spring bars, a deep-drop shank, brackets, lift-assist bar, and all necessary hardware. It is designed for straightforward setup and supports heavy loads with a robust steel head and welded bar. Clamp-on brackets accommodate trailer frames up to 7 inches wide.
Best for: Users seeking a comprehensive, ready-to-install WDH package with a deep-drop option for taller vehicles. Cautions: Ensure the included components match your trailer frame width and mounting preferences.
CURT 17132 Replacement Weight Distribution Shank (2-1/2″ Receiver, 8″ Drop)
This replacement shank provides an adjustable mount for CURT WDH systems, rated for up to 15,000 lbs GTW and 1,500 lbs TW. It features multiple holes for adjustable head height, enabling precise alignment. Best for: Replacing worn or incompatible shanks to restore proper hitch alignment. Cautions: Confirm overall system compatibility and weight ratings when substituting components.
CURT 17120 Adj Hitch Bar 12 in X 5 625 in W/8 875 in Rise
This adjustable hitch bar provides a mounting solution for CURT WDHs with multiple head-height options. It supports up to 15,000 lbs GTW and 1,500 lbs TW. The design focuses on flexible height adjustments to align towing geometry for varying trailer loads. Best for: Users who frequently change trailer configurations or ride heights. Cautions: Verify the drop/rise range matches your vehicle and trailer setup.
Buying Guide
What should you consider when choosing a weight distribution drop hitch?
- Vehicle height and bed clearance: If you drive a lifted or tall truck, a deep-drop shank can keep towing geometry level and avoid clearance issues.
- Tow weight and tongue weight: Match the hitch’s GTW and TW ratings to your trailer’s weight to ensure safe distribution and control.
- Drop vs. rise needs: Choose a drop if you want the trailer tongue lower; choose a rise if you need higher hitch clearance or level stance for off-road use.
- Compatibility with head and bars: Ensure the shank is compatible with your WDH head and spring bars to avoid mounting constraints.
- Sway control: If trailer sway is a concern, consider a model that includes sway control or supports easy addition of sway components.
- Lubrication and maintenance: Some models feature grease zerks for easier long-term maintenance; factor in ease of lubrication access.
How should you compare options?
- Best for lifted trucks: Look for a deep-drop or flipable shank with substantial drop or rise (7″ drop / 10-1/2″ rise or more).
- Best for standard pickups: A mid-range drop or adjustable shank paired with a reliable WDH head works well.
- Best for sway-sensitive trailers: Models including sway control or compatible kits can improve stability significantly.
What installation considerations matter?
- Ensure the receiver size matches your hitch (2″ or 2-1/2″ commonly).
- Check clearance between the shank, frame, and exhaust components after installation.
- Inspect mounting hardware for proper torque per manufacturer guidelines.
FAQ
- What is a weight distribution hitch drop?
- When should I use a 7″ drop or 10-1/2″ rise?
- Can I mix shanks with different WDH heads?
- Is sway control necessary for every trailer?
- Do these products require maintenance?
- What should I check before buying?
A drop refers to the vertical distance the hitch shank lowers the trailer tongue to achieve level towing when the tow vehicle sits higher or lower than the trailer.
Use a larger drop or rise for tall trucks or trailers with high tongue heights to maintain level towing and stable handling.
Compatibility depends on the head type and receiver; confirm compatibility to avoid misalignment or reduced performance.
Not always, but trailers with windy conditions or light, long bodies often benefit from sway control integration.
Most benefit from periodic lubrication of moving parts and inspection of bolts and mounting hardware.
Check gross trailer weight, tongue weight rating, receiver size, and compatibility with your existing WDH head and spring bars.