Front Leaf Spring Bushings - Ford F250 - 4.2120

  • 4.2120 360image 1
  • 4.2120 Front Leaf Spring and Shackle Bushings (non crew cab)
  • 4.2120 Front Leaf Spring and Shackle Bushings (non crew cab)
  • 4.2120 Front Leaf Spring and Shackle Bushings (non crew cab)
  • 4.2120 Front Leaf Spring and Shackle Bushings (non crew cab)
  • 4.2120 360image large 1

Front Leaf Spring and Shackle Bushings (non crew cab)

Manufacturer: Energy Suspension
Part Number: 4.2120

Color: (?)
Black
Red

Exclusive for DST Customers: (?)
Free Lifetime Warranty Upgrade
Price: $50.85

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  • 4 - 2057 - Front Shackle
  • 4 - 2058 - Front Main Eye
  • 4 - 2072 - F-Spring
  • 4 - 15.10.36.39 (.750 x .562 x 3.375)
  • 2 - 15.10.43.39 (.875 x .625 x 3.375)
  • 1 - 9.11102 - 10 Grams Grease Package
  • 1 - 17040 - Instructions For Spring Eye
  • Energy Suspension warrants its products against defects in workmanship and material for 24 months when used on passenger cars and light trucks. Products that have been abused, altered, or incorrectly installed are not covered. Energy Suspension will replace defective products or component parts, if inspection for factory personnel determines the part to be defective. Warranty replacement covers only the product. Labor claims, time loss, or freight charges will not be honored.
Cross Reference from 4.2120 to 61011
Prothane 61011
Polyurethane.
Price: $46.77
Warranty: Lifetime Warranty

Cross Reference from 4.2120 to kf02015bk
Daystar kf02015bk
Polyurethane.
Price: $44.16
Warranty: Lifetime Warranty

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FitmentFront Leaf Spring and Shackle Bushings (non crew cab) 4.2120 fits these vehicles:
Details
Polyurethane Front Leaf Spring Bushings
For high performance applications, the combination of heavy duty or performance leaf springs and HYPER FLEX performance polyurethane spring bushings deliver the maximum benefit.

Front Leaf Spring Bushings - Ford F250 - 4.2120

Polyurethane Front Leaf Spring Bushings
  • Adds a dramatic amount of performance and durability to any vehicle!
  • Improves vehicle handling, cornering and overall control.
  • Helps the vehicle be in control when maneuvering through turns, during standing start accelerations, braking, even over bumps and berms.
  • Made of Energy's HYPER FLEX performance polyurethane to add performance and durability.
Footnotes
  • One Set Will Cover the Left and Right Side
  • Does Not Kit Crew Cab Models

Energy Suspension HyperFlex Leaf Spring and Shackle Bushings

Vehicles with a leaf spring and shackle set up lean heavily on the springs to take the shock out of a bump. Not only does a leaf spring reduce the force of a bump that you feel, but it also evenly distributes the load across the chassis instead of the whole load pressing down on one point. Your ability to get to point A to point B without scraping the pavement is heavily dependent on the leaf spring and shackle bushings which mount the spring to the frame. Energy Suspension's Hyperflex polyurethane is a stronger material for the mounting points of a leaf spring and shackle. Polyurethane leaf spring bushings are able to handle the stress from the suspension, and is not vulnerable to road grime. With Energy Suspension's polyurethane, you can protect your vehicle's ability to carry a load, and your bumpy free ride, for years to come.
Energy Hyperflex Leaf Spring
Energy Hyperflex Leaf Spring Lifespan

Replacing the Faulty Rubber

O.E. leaf spring and shackles utilize a soft rubber bushing to mount the spring to the frame. The rubber is great for reducing the noise and vibrations from being transferred into the cab. Unfortunately, rubber bushings have a short lifespan. Once the rubber fails, due to wear and tear or road grime, a leaf spring's effectiveness is severely reduced. Meaning you will experience a very bumpy ride, the vehicle's ability to carry a load or tow is hindered greatly and you'll experience a loss of control.

Be sure to use Formula 5

A leaf spring bushing rotates a lot against the metal shell, so make sure you grease it well with Energy Suspension's own Formula 5 Bushing Lubricant. Using plenty of grease is the best way to ensure a long lasting part without any squeaking. If you'd like some extra grease just in case, pick up an extra 3 pack or an 8 ounce tube.
Formula 5 Gif

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