Dorman 43-559 rear leaf spring for the 1975-1979 Ford F-150 and other vehicles holds up the vehicle's weight and payload as part of the rear suspension. A working spring supports suspension performance and passenger comfort.
- Part of the Dorman OE Solutions line
- Replaces leaf springs damaged by overloading, collision, cracking or corrosion
- Five-leaf steel pack
- Berlin eye attachment at both ends
- No axle modification needed
Quick facts
- Part: Dorman 43-559 leaf spring
- Also called: leaf spring assembly
- Fits: 1975-1979 Ford F-150 and other vehicles
- Position: Rear
- Material: Steel
- Condition: New
A sagging rear end, cracked or broken leaves, or heavy rust can mean a leaf spring is worn. Those signs alone do not prove the spring is the problem, since a worn shock can give a similar rough ride.
Fits
It is a direct-fit replacement for the 1975-1979 Ford F-150 and the 1973-1979 Ford F-100, and either takes two springs. Both rear springs are normally replaced together, and this listing is one.
Specifications
Fit and size
- Position: Rear
- Quantity per vehicle: 2
- Leaves: 5
- Leaf width: 2.5 in
- Pack thickness: 1.826 in
- Arch length: 7.625 in
- Length axis 1 and axis 2: 24 in each
- Length B: 31.5 in
- Load rate: 1450 lb
Build and materials
- Material: Steel
- Suspension grade: Standard replacement
- End attachments: Berlin eye at both ends
- Bushings: Included
- Condition: New
In the box
One leaf spring with its bushings. Mounting hardware is not included, so plan on new hardware rather than reusing the old.
Interchange: 043-0559-00
20800 · D2TA5560JA · D2TAJA · D3TZ5560B
This part cross-references / interchanges with the following part numbers:
20800, D2TA5560JA, D2TAJA, D3TZ5560B, 043-0559-00
Frequently Asked Questions
Will Dorman 43-559 work as a leaf spring for the 1975-1979 Ford F-150?
Yes. Dorman 43-559 is a rear leaf spring for the 1975-1979 Ford F-150, which takes two of them.
Is Dorman 43-559 one of the 1973-1979 Ford F-100 leaf springs?
Yes. This rear leaf spring is also listed for the 1973-1979 Ford F-100, two per vehicle, and it is sold one per listing.
How many leaves does this Dorman leaf spring have?
Dorman 43-559 has five leaves, with a 2.5 in leaf width, 1.826 in pack thickness and a load rate of 1450 lb.
Does this leaf spring assembly come with bushings and mounting hardware?
Bushings are included; mounting hardware is not, so plan on new hardware. This listing is one leaf spring.
Can cracked leaves or rust on a rear leaf spring mean it needs replacing?
Yes. Cracks, heavy rust or a sagging rear end can mean the spring is worn. Have a shop inspect it promptly if you see them.
