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Dorman 43-1503HD Leaf Spring Assembly - RearOE Quality 60-Day Returns
Part #: 43-1503HD

Dorman 43-1503HD Leaf Spring Assembly - Rear

Rear
27 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford and Mazda, B2300, B3000, B4000, and Ranger
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Not what you need? See all Leaf Spring Assembly options

Durable Leaf Spring Assembly for Ford and Mazda Trucks

The Dorman 43-1503HD leaf spring assembly is engineered for heavy-duty suspension needs on select Ford and Mazda trucks. Designed to provide reliable rear axle support, this steel leaf spring assembly ensures consistent load handling and improved vehicle stability.

Key Features of the Dorman 43-1503HD Leaf Spring Assembly

  • Constructed from high-quality steel (acero) for strength and durability
  • Heavy-duty suspension grade with a 1750 lb load rate capacity
  • Includes five leaves with a 2.5-inch leaf width for balanced support
  • Black powder-coated finish for corrosion resistance
  • Comes with black bushings included for smooth operation
  • Designed for rear axle orientation with no axle modification required
  • Leaf spring arch length of 5.5 inches and pack thickness of 1.914 inches

Detailed Description of the Leaf Spring Assembly

The Dorman 43-1503HD leaf spring assembly is specifically designed for rear suspension applications on Ford B2300, B3000, B4000, and Ranger models, as well as compatible Mazda trucks. This assembly features a five-leaf pack constructed from durable steel, providing a load rate of 1750 pounds to support heavy-duty use. The black powder-coated finish helps resist rust and wear, extending the service life of the spring. Black bushings are included to reduce noise and vibration, enhancing ride quality. The assembly requires no axle modifications, allowing for straightforward installation and replacement.

Common Applications and Problem Solving

  • Restores sagging or worn rear suspension on Ford B2300, B3000, B4000, and Ranger trucks
  • Addresses uneven ride height and poor load handling
  • Replaces broken or cracked leaf springs to improve vehicle stability
  • Improves rear axle support for heavy loads and towing
  • Eliminates excessive suspension noise caused by worn bushings

Installation Notes and Tips

Installation of the Dorman 43-1503HD leaf spring assembly is designed to be direct and does not require axle modifications. Ensure the vehicle is safely supported before removing the old leaf spring. Since mounting hardware is not included, reuse existing hardware if in good condition or purchase new hardware separately. Proper torque specifications should be followed to maintain suspension integrity and safety.

Quality Assurance and Warranty

Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for durability and performance. The steel construction and corrosion-resistant coating contribute to long service life. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.

BrandDorman
Part Number43-1503HD
MaterialAcero
MaterialSteel
Bushing ColorBlack
Bushing ColorNegro
Bushing ColorNoir
ColorBlack
ColorNegro
ColorNoir
Load Rate1750
Suspension Grade TypeHeavy duty
Suspension Grade TypePara uso pesado
Leaf Quantity5
Leaf Width2.5
Axle OrientationArrière
Axle OrientationRear
Axle OrientationTrasero
Helper SpringNo
Helper SpringNon
Axle Modification NeededNo
Axle Modification NeededNon
Bushings IncludedOui
Bushings IncludedSí
Bushings IncludedYes
Mounting Hardware IncludedNo
Mounting Hardware IncludedNon
Length Axis 125.75
Length Axis 225.75
Pack Thickness1.914
Leaf Spring Arch Length5.5
Spring Research Institute Number43-1503hd

This part fits 27 vehicles. Search below:

YearMakeModelPositionNotes
2011FordRangerRear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2010FordRangerRear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2010MazdaB2300Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2010MazdaB4000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2009FordRangerRear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2009MazdaB2300Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2009MazdaB4000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2008FordRangerRear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2008MazdaB2300Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2008MazdaB3000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2008MazdaB4000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2007FordRangerRear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2007MazdaB2300Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2007MazdaB3000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2007MazdaB4000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2006FordRangerRear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2006MazdaB2300Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2006MazdaB3000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2006MazdaB4000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2005FordRangerRear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2005MazdaB2300Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2005MazdaB3000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2005MazdaB4000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2004FordRangerRear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2004MazdaB2300Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2004MazdaB3000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design
2004MazdaB4000Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 1.9375 In. Pack Thickness; 1,750 Lb. Average Capacity; Heavy Duty Aftermarket Design

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

043-1503-00HD43-1503HD43-1503HDDAY

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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