Let’s Dive into Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank 3″ Drop 7″ Rise 12in Length
The Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank 3″ Drop 7″ Rise 12in Length is designed to provide adjustable height for your towing setup, ensuring a level and safe connection between your tow vehicle and trailer. Manufactured by Progress Manufacturing, this shank is part of their Equal-i-zer sway control hitch system, known for its effectiveness in reducing trailer sway.
My need for this product arose from a frustrating experience towing a smaller utility trailer with my aging pickup. The trailer always seemed to sit nose-high, creating a dangerous and unstable towing situation. I needed a shank that offered a precise drop adjustment to level things out.
Upon receiving the Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank, I was immediately struck by its robust construction. The welds looked clean and strong, and the finish seemed durable enough to withstand harsh weather conditions. It certainly felt heavier than the flimsy shanks I had used in the past, inspiring confidence.
I considered a few other adjustable shanks from competitors like Curt and Blue Ox, but ultimately, I chose the Progress Manufacturing product because of its compatibility with the Equal-i-zer system I intended to build. The Equal-i-zer hitch system is a name synonymous with sway control. The positive reviews and proven track record swayed me.
My first impression was overwhelmingly positive. The Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank appeared to be a well-engineered and durable piece of equipment that would solve my towing woes. It was exciting to finally find a solution that seemed both safe and reliable.
Real-World Testing: Putting Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank 3″ Drop 7″ Rise 12in Length to the Test
First Use Experience
My initial test involved towing my utility trailer loaded with firewood on a 100-mile trip through winding mountain roads. I tested it on both paved and gravel surfaces. The difference in towing stability with the leveled trailer was immediately noticeable.
The Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank performed admirably in various conditions, including a brief but heavy downpour. The trailer remained stable, and there was significantly less sway compared to my previous setup. I felt much more confident and in control.
Using the shank was straightforward, though adjusting the height initially required some patience and a good wrench. Once set, the connection was secure. I did not need to get used to it, but I could already tell it was more secure.
The only minor issue I encountered was a slight creaking noise from the hitch during sharp turns, which I later attributed to the need for proper lubrication of the sway control arms (not directly related to the shank itself but still part of the overall system). Other than that, the first-time use was a success.
Extended Use & Reliability
After several months of regular use, the Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank has proven to be a reliable and durable component of my towing setup. There are no significant signs of wear and tear. The finish still looks good.
The shank has held up remarkably well, even after being exposed to mud, salt, and road debris. I have noticed some minor surface rust in a few spots. Regular cleaning and application of grease to the moving parts will minimize this in the long term.
Maintenance is simple: a quick wash with soap and water, followed by lubrication of the hitch ball and any other friction points. It’s easy to care for. The setup has outperformed my expectations and previous experiences significantly.
Breaking Down the Features of Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank 3″ Drop 7″ Rise 12in Length
Specifications
The Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank boasts several key specifications that contribute to its performance and versatility. It is designed for use with Equal-i-zer sway control hitches rated for 6K, 10K, 12K, and 14K trailer weights. The shank fits standard 2″ receiver tubes.
The product features a 3″ drop and a 7″ rise, allowing for a 10″ vertical adjustment range. This is crucial for leveling different trailer and vehicle combinations. Its total length is 12 inches.
The hitch head mounting holes are spaced at 1 1/4″ on center. This ensures compatibility with Equal-i-zer hitch heads. These specifications directly affect the ability to achieve a level tow, which is paramount for safety and stability.
Performance & Functionality
The Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank performs its primary function of providing adjustable height exceptionally well. It allows for fine-tuning the trailer’s position to achieve a level and balanced tow. This contributes to improved handling and reduced sway.
The main strengths include its robust construction, wide adjustment range, and compatibility with the Equal-i-zer sway control system. A potential weakness is the initial setup can be cumbersome if precise measurements aren’t taken. Overall it meets my expectations.
Design & Ergonomics
The Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank is constructed from heavy-duty steel. The construction is well thought out. It is built to last, and has a weight that reflects its durability. The design is functional.
The shank is generally user-friendly, although the initial height adjustment requires some effort. A torque wrench is required. The learning curve is minimal.
Durability & Maintenance
Given its heavy-duty steel construction, the Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank is built to last for many years with proper care. It should last a long time. Maintenance primarily involves cleaning and lubrication, as described previously.
Accessories and Customization Options
The Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank doesn’t come with many accessories. Its primary function is to provide an adjustable mounting point for the Equal-i-zer hitch head. The shank is designed to work seamlessly with the Equal-i-zer system.
It is compatible with various Equal-i-zer hitch heads and sway control arms. This allows for some customization based on the specific trailer weight and towing needs. The compatibility with the Equal-i-zer system is a significant advantage.
Pros and Cons of Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank 3″ Drop 7″ Rise 12in Length
Pros
- Provides a wide range of vertical adjustment (3″ drop, 7″ rise), allowing for precise leveling of the trailer.
- Built from heavy-duty steel for exceptional durability and long-lasting performance.
- Seamlessly integrates with the Equal-i-zer sway control hitch system, enhancing towing stability.
- Easy to maintain with regular cleaning and lubrication.
- Provides added safety while towing.
Cons
- Initial height adjustment can be time-consuming and requires proper tools.
- Some users may experience creaking noises during sharp turns, requiring lubrication.
Who Should Buy Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank 3″ Drop 7″ Rise 12in Length?
The Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank is perfect for individuals who frequently tow trailers with varying loads or tow vehicles, requiring precise height adjustments. It is also ideal for those who prioritize safety and stability while towing. The shank is beneficial to those using the Equal-i-zer sway control system.
This product may not be necessary for individuals who only tow trailers with a consistent load and vehicle combination, where a fixed-height shank is sufficient. People without the Equal-i-zer system should skip this product. A standard ball mount may work in this situation.
A must-have accessory is a high-quality torque wrench to ensure proper tightening of the bolts during height adjustment. Regular lubrication of the hitch ball and sway control arms is also essential for optimal performance.
Conclusion on Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank 3″ Drop 7″ Rise 12in Length
Overall, the Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank is a well-engineered and durable product that provides exceptional value for anyone seeking to improve their towing experience. It’s a great addition to any towing setup.
The price is justified considering the improved safety and stability it provides, along with its long-lasting construction. It is very reasonably priced. I would highly recommend this product to anyone using the Equal-i-zer system and needing an adjustable shank.
Invest in the Progress MFG 90-02-4140 Equal I Zer 2″ Adjustable 4K Shank and experience the peace of mind that comes with a level, stable, and safe towing setup. Your trailers will thank you!