Home› Suspension > Suspension, Springs and Related Components› Dorman 43-1055 Leaf Spring Assembly - Rear
Dorman 43-1055 Leaf Spring Assembly - RearOE Quality 60-Day Returns
Dorman 43-1055 Leaf Spring Assembly - Rear - view 1
Dorman 43-1055 Leaf Spring Assembly - Rear - view 2
Dorman 43-1055 Leaf Spring Assembly - Rear - view 3
Dorman 43-1055 Leaf Spring Assembly - Rear - view 4
Dorman 43-1055 Leaf Spring Assembly - Rear - view 5
Dorman 43-1055 Leaf Spring Assembly - Rear - view 6
Dorman 43-1055 Leaf Spring Assembly - Rear - view 7
Part #: 43-1055

Dorman 43-1055 Leaf Spring Assembly - Rear

Rear
⚙️ 35 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$360.36Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-150, F-250, F-250 HD, and F-350
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Leaf Spring Assembly options

Durable Leaf Spring Assembly for Ford F-Series Trucks

The Dorman 43-1055 leaf spring assembly is engineered to provide reliable rear suspension support for Ford F-150, F-250, F-250 HD, and F-350 models. Constructed from high-quality steel with a black finish, this replacement leaf spring assembly is designed to restore proper ride height and handling performance.

  • Constructed from durable steel material with a black corrosion-resistant finish
  • Includes five leaves with a 3-inch leaf width for balanced load distribution
  • Standard replacement suspension grade designed for rear axle orientation
  • Load rate of 2400 lbs suitable for typical truck payloads
  • Comes with black bushings included for smooth articulation and reduced noise
  • No axle modification or helper spring required for installation
  • Leaf spring arch length measures 8.688 inches with a pack thickness of 2.215 inches

Product Details and Specifications

The Dorman 43-1055 leaf spring assembly is a direct replacement part designed specifically for rear suspension on select Ford trucks. Featuring five steel leaves, this assembly provides consistent support and durability under load. The black bushings included help maintain proper alignment and reduce wear on suspension components. With a load rate of 2400 lbs, it is suitable for standard suspension applications without the need for additional helper springs or axle modifications. The 25-inch length on both axes and the 3-inch leaf width ensure compatibility with the original suspension geometry.

Compatible Vehicles and Applications

  • Ford F-150 rear suspension leaf spring replacement
  • Ford F-250 and F-250 HD rear leaf spring assembly
  • Ford F-350 rear axle suspension component
  • Standard suspension grade replacement for Ford trucks requiring 2400 lb load capacity

Installation Notes and Tips

Installation of the Dorman 43-1055 leaf spring assembly does not require axle modifications or additional helper springs. Ensure the vehicle is properly supported and the suspension is unloaded before removal of the old leaf spring. Verify that the included black bushings are correctly seated to maintain suspension alignment and reduce noise. It is recommended to inspect related suspension components during installation for wear or damage.

Quality Assurance and Warranty

Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for fit, form, and function. The steel construction and corrosion-resistant black finish contribute to long service life. Bushings included are designed for durability and smooth operation. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.

BrandDorman
Part Number43-1055
MaterialAcero
MaterialSteel
Bushing ColorBlack
Bushing ColorNegro
Bushing ColorNoir
ColorBlack
ColorNegro
ColorNoir
Load Rate2400
Suspension Grade TypeReemplazo estándar
Suspension Grade TypeStandard
Leaf Quantity5
Leaf Width3
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
Length Axis 225
Pack Thickness2.215
Leaf Spring Arch Length8.688
Spring Research Institute Number43-1055

This part fits 35 vehicles. Search below:

YearMakeModelBody TypeDrive TypePositionNotes
1997FordF-250 HDRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1997FordF-350Standard Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1997FordF-350Extended Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1997FordF-350Crew Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1997FordF-350Cab & ChassisRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity; w/Single Rear Wheel (SRW)
1996FordF-1504WDRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1996FordF-250Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1996FordF-350Standard Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1996FordF-350Extended Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1996FordF-350Crew Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1996FordF-350Cab & ChassisRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity; w/Single Rear Wheel (SRW)
1995FordF-1504WDRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1995FordF-250Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1995FordF-350Standard Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1995FordF-350Extended Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1995FordF-350Crew Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1995FordF-350Cab & ChassisRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity; w/Single Rear Wheel (SRW)
1994FordF-1504WDRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1994FordF-250Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1994FordF-350Standard Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1994FordF-350Extended Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1994FordF-350Crew Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1994FordF-350Cab & ChassisRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity; w/Single Rear Wheel (SRW)
1993FordF-1504WDRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1993FordF-250Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1993FordF-350Standard Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1993FordF-350Extended Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1993FordF-350Crew Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1993FordF-350Cab & ChassisRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity; w/Single Rear Wheel (SRW)
1992FordF-1504WDRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1992FordF-250Rear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1992FordF-350Standard Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1992FordF-350Extended Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1992FordF-350Crew Cab PickupRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity
1992FordF-350Cab & ChassisRear4 Leaf / 1 Leaf = 5 Leaf Spring; 2.1875 In. Pack Thickness; 2,400 Lb. Average Capacity; w/Single Rear Wheel (SRW)

* 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:

43-1103F2TA5560VBF2TAVBF2TZ5560G

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

Related Articles