CURT 45070 Class III 2"x2" Ball Mount — 6" Drop / 4" Rise, 7,500 lb GTW, Gloss Black

CURT 45070 is a heavy-duty Class III ball mount with a 2" x 2" shank that offers a 6" drop or 4" rise and handles up to 7,500 lb gross trailer weight in the drop position.

Built for pickup trucks and SUVs with a 2" receiver, this CURT ball mount combines precision manufacturing, corrosion-resistant coating and simple installation to make towing safer and more reliable. Engineered components and robotic welding deliver consistent strength, while the gloss black powder coat finish helps the mount resist road wear and rust. Whether you’re hauling a boat, a camper, a utility trailer or livestock equipment, this mount provides a solid link between vehicle and trailer when used within the lowest-rated component limit.

How does the CURT 45070 adapt to different trailer heights?

This ball mount flips to create two practical towing positions: a 6" drop for trailers that sit lower than your vehicle’s hitch and a 4" rise when the trailer tongue is higher. Switching positions is quick — remove the hitch pin, flip the shank assembly, and re-pin. Choose the position that levels the trailer to maintain stability and even weight distribution.

• Drop position: 6" drop, 7,500 lb GTW, 750 lb tongue weight
• Rise position: 4" rise, 6,000 lb GTW, 600 lb tongue weight
• 9-1/4" length for common trailer/tow vehicle combinations
• Requires appropriate trailer ball and hitch pin (sold separately)

What makes this ball mount durable for frequent towing?

CURT 45070 is CNC-formed and robotically welded to ensure consistent fit and structural integrity across units. Mechanical descaling creates a smooth base for the powder coat to adhere, improving resistance to chipping and corrosion. The gloss black powder coat helps protect against road salt, moisture and abrasion so the mount lasts through seasonal use.

• High-strength steel construction for towing loads
• Mechanically descaled prior to finishing for better adhesion
• Gloss black powder coat resists rust, chips and UV fade
• Robot-welded seams for consistent strength and quality

How do I install and use the CURT 45070 safely?

Installation is straightforward: slide the 2" x 2" shank into a compatible 2" receiver, then secure it with a hitch pin or lock (not included). The 1" hole accepts a standard 1" trailer ball with a matching shank diameter; that trailer ball must be selected and tightened to the manufacturer’s torque specification. Always verify the lowest-rated component — vehicle, hitch, ball, mount or trailer — and never exceed that limit.

• Insert shank into a 2" receiver and secure with hitch pin/lock (sold separately)
• Use a 1" diameter trailer ball (sold separately) and torque according to ball instructions
• Check and respect the lowest-rated towing component for safe capacity
• Inspect for wear, cracks or coating damage before each towing trip

Which trailers and vehicles pair best with this Class III mount?

This mount is designed for standard Class III towing setups found on many trucks and SUVs. It supports a wide range of trailers commonly towed by those vehicles, including boat trailers, campers, utility trailers and small livestock trailers. Select the drop or rise that levels the trailer and confirms tongue weight and gross trailer weight stay within rated limits.

• Commonly matched with pickup trucks and sport utility vehicles
• Suitable for boat trailers, campers, utility and single-horse trailers
• Works with industry-standard 2" receivers and 1" ball shafts
• Not a substitute for towing components rated below the mount’s capacity

Who is this for: The CURT 45070 is aimed at drivers who tow regularly and need a reliable, heavy-duty Class III ball mount for trucks or SUVs with a 2" receiver. It’s a good fit for owners of recreational trailers, small campers, boats and utility trailers who want a durable, corrosion-resistant mount that offers simple height adjustment. Choose this mount if you prioritize consistent manufacturing, a long-lasting finish and clear, rated positions for drop and rise towing.