Dorman 43-1599 rear leaf spring for the 2005-2007 Ford F-350 Super Duty supports the weight and payload of the vehicle at the rear suspension. This Dorman leaf spring replaces one damaged by overloading, collision, cracking or corrosion.
- Part of the Dorman OE Solutions line
- Steel construction made to strict specifications for long service life
- Load rate of 3625 pounds from an 11-leaf pack
- Up-turned eye on both ends, with bushings included
Quick facts
- Part: Dorman 43-1599 leaf spring
- Also called: leaf spring assembly
- Fits: 2005-2007 Ford F-350 Super Duty
- Position: Rear
- Material: Steel
- Condition: New
A sagging rear end, a cracked or broken leaf or heavy rust on the leaves can mean the leaf spring assembly is worn out. These signs alone do not prove the spring is at fault, since worn shocks can also cause a rough, bouncy ride. Plan on replacing the rear springs as a pair; this listing is a single spring.
Fits
This spring is a direct-fit replacement for the 2005-2007 Ford F-350 Super Duty, which takes two.
Specifications
Fit and size
- Position: Rear
- Quantity per vehicle: 2
- Leaf quantity: 11
- Ends: up-turned eye on both ends
- Length axis 1 and axis 2: 25.5 in
- Length B: 30.25 in
- Leaf width: 3 in
- Pack thickness: 4.148 in
- Arch length: 4.75 in
- Load rate: 3625 lb
Build and materials
- Material: Steel
- Grade: Standard replacement
- Bushings: included, black
- Condition: New
In the box
One leaf spring with its bushings. Mounting hardware is not included, and the old hardware may not be reusable, so plan on new pieces.
Interchange: 43-1525 · 43-1523 · 43-1597 · 43-1599DAY · 043-1599-00
5C345A975GG · 5C34GG · 5C3Z5560GG
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
43-1525, 43-1523, 43-1597, 5C345A975GG, 5C34GG, 5C3Z5560GG, 43-1599DAY, 043-1599-00
Frequently Asked Questions
Is Dorman 43-1599 among the 2005-2007 Ford F-350 Super Duty leaf springs?
Yes. Dorman 43-1599 is a rear leaf spring for the 2005-2007 Ford F-350 Super Duty, and the truck takes two. This listing is one spring.
Does Dorman 43-1599 come with bushings and mounting hardware?
The bushings are included; the mounting hardware is not. The box holds one leaf spring with its bushings, so buy hardware separately.
What is the load rate of this rear leaf spring?
Dorman 43-1599 has a load rate of 3625 pounds and an 11-leaf pack. Its length B is 30.25 in and its leaf width is 3 in.
What should I look for on a worn rear leaf spring?
Cracked or broken leaves, heavy rust, or a rear end that sits low can be signs of wear. A shop can inspect the springs if you are unsure.
Is 5C3Z5560GG the same as Dorman 43-1599?
Yes. 5C3Z5560GG is on the interchange list for Dorman 43-1599, so the two numbers cross-reference to the same rear leaf spring.
