HomeSuspension > Suspension, Springs and Related ComponentsDorman 43-1985 Leaf Spring Assembly - Rear
Part #: 43-1985

Dorman 43-1985 Leaf Spring Assembly - Rear

Rear
19 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, F-150
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Durable Leaf Spring Assembly for Ford F-150 Rear Suspension

The Dorman 43-1985 leaf spring assembly is engineered to restore the rear suspension performance of your Ford F-150. Constructed from high-quality steel with a black finish, this replacement leaf spring assembly offers reliable support and durability for standard suspension setups.

  • Constructed from durable steel material with a black corrosion-resistant finish
  • Includes four leaves with a 3-inch width for balanced load distribution
  • Designed for rear axle orientation, compatible with Ford F-150 models
  • Standard replacement suspension grade with a 1900 load rate
  • Comes with black bushings included for smooth operation
  • No axle modification or helper spring required for installation
  • Leaf spring arch length of 6.625 inches and pack thickness of 1.979 inches

Detailed Description of Dorman Leaf Spring Assembly 43-1985

This leaf spring assembly is designed specifically for the rear suspension of Ford F-150 trucks, providing a standard replacement option that maintains factory ride quality. The assembly features four steel leaves, each 3 inches wide, stacked to deliver a 1900 load rate suitable for typical load conditions. The black finish helps resist corrosion, extending the service life of the component. Black bushings are included to reduce noise and vibration, ensuring a smoother ride. The assembly requires no axle modifications or additional helper springs, simplifying the replacement process.

Common Applications and Problem Resolution

  • Restores sagging or worn rear suspension springs on Ford F-150 trucks
  • Addresses uneven ride height or poor load handling
  • Eliminates excessive rear-end bounce or instability
  • Replaces damaged or cracked leaf springs due to wear or corrosion
  • Improves overall rear axle support and vehicle stability

Installation Notes and Tips

Installation of the Dorman 43-1985 leaf spring assembly is straightforward for technicians familiar with rear suspension components. No axle modifications are necessary, and the included bushings simplify mounting. It is recommended to inspect related suspension components during installation and replace any worn hardware separately, as mounting hardware is not included. Proper torque specifications should be followed to ensure safe and reliable operation.

Quality Assurance and Warranty Information

Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for material and performance. The steel construction and corrosion-resistant finish contribute to long-term durability. This product includes bushings to enhance ride quality and reduce noise. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in material and workmanship.

BrandDorman
Part Number43-1985
MaterialAcero
MaterialSteel
Bushing ColorBlack
Bushing ColorNegro
Bushing ColorNoir
ColorBlack
ColorNegro
ColorNoir
Load Rate1900
Suspension Grade TypeReemplazo estándar
Suspension Grade TypeStandard
Leaf Quantity4
Leaf Width3
Axle OrientationArrière
Axle OrientationRear
Axle OrientationTrasero
Helper SpringNo
Helper SpringNon
Axle Modification NeededNo
Axle Modification NeededNon
Bushings IncludedOui
Bushings Included
Bushings IncludedYes
Mounting Hardware IncludedNo
Mounting Hardware IncludedNon
Length Axis 128.5
Length Axis 228.5
Pack Thickness1.979
Leaf Spring Arch Length6.625
Spring Research Institute Number43-1985

This part fits 19 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2020FordF-150LariatRear3 Leaf /1 Leaf /Two Stage Spring
2019FordF-150LariatRear3 Leaf /1 Leaf /Two Stage Spring
2018FordF-150LimitedRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2018FordF-150PlatinumRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2018FordF-150SSVRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2018FordF-150Police ResponderRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2018FordF-150XLRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2018FordF-150XLTRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2018FordF-150King RanchRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2018FordF-150LariatRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2017FordF-150LimitedRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2017FordF-150PlatinumRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2017FordF-150SSVRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2017FordF-150XLRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2017FordF-150XLTRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2017FordF-150King RanchRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2017FordF-150LariatRear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2016FordF-150Rear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity
2015FordF-150Rear3 Leaf / 1 Leaf = 4 Leaf Spring; 2 In. Pack Thickness; 1,900 Lb. Average Capacity

* 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:

043-1985-0043-198543-1985DAY43-1985HUSFL345560EAFL345560EDFL345560EEFL345560EFFL34EAFL34EDFL34EEFL34EFFL3Z5560D

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