Catalog status
Active catalog
Rear
Parts / Ford
43-803
Published specs for 43-803. Compare them with the spring in hand, then ask about price, stock, or fit.
Technical record
Part numbers, specs, and how to ask about this part.
Use these published details to compare the spring in hand and ask about the right part.
Position
Rear
Spring group
Multi-leaf
Spring stage
Progressive
Leaf count
4+1
A-side length (La)
25"
B-side length (Lb)
31"
Camber / free arch (C)
6-7/8"
Eye Diameter (Ø Eye)
A-side 1-5/8" · B-side 1-3/8"
Width / thickness (W)
Width 3" · Thickness 3/8" × 13/16"
Load capacity
2810 lb
Published load details are extra checks alongside the spring in hand. Ask APM USA to confirm fit before you buy.
Part details
Part numbers and reference numbers.
Start here, then compare the spring in hand.
- SRI number
- 43-803
- Catalog status
- Active catalog
- OEM references
- E3TZ5560M
These reference numbers help you check the listing. The guide below is only a general measuring guide for the spring in hand.
Cart or quote
Choose the right buying path.
Add this part to the cart. If it is ready now, checkout handles it. If APM needs to check it, we reply by email.
- Part number: 43-803
- Catalog status: Active catalog
- Vehicle shown: Ford E3TZ 5560M
- Spring group: Multi-leaf
- Spring stage: Progressive
- Ready-now parts: create an account or sign in to see price and checkout.
- Parts to check: APM keeps them in the cart and replies by email.
APM Direct
Add this part to APM Direct.
Availability
APM will check this part before quoting.
Ask availability APM will confirm stock and timing.
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No login needed to add it. Email comes later so APM can reply.
View cart (0)Direct email opens your email app, sends to ask@mrapmusa.com, and includes the page link and specs shown above. Ready to buy? Create an account or sign in.
Measurement guide
Measure the spring in hand.
Use this as a field guide for the spring you removed. It is not a factory print for this part.
Selected diagram · Multi-leaf progressive spring diagram
Multi-leaf progressive spring diagram
Use this diagram as a measurement guide. Match the letters below against 43-803. This is not a factory print.
FL
Full spring length reference shown on the diagram
La
A-side eye center to center bolt
Lb
B-side eye center to center bolt
C
Camber / free arch at the center bolt
Ø Eye
Spring eye diameter
W
Spring pack width; confirm thickness from the material-size row
Leaves
Main leaf count in the spring pack; source field #L
- La A-side length
- 25" Measure from the front eye center to the center bolt.
- Lb B-side length
- 31" Measure from the rear eye center to the center bolt. Source length pair.
- C Camber / free arch
- 6-7/8" Measure vertically at the center bolt from the eye-center line to the spring pack.
- Ø Eye Eye Diameter
- A-side 1-5/8" · B-side 1-3/8" Check the spring eye diameter at both ends.
- W Width / thickness
- Width 3" · Thickness 3/8" × 13/16" Match the Width value to the W callout, then confirm the listed thickness value or stack.
- Leaf count
- 4+1 leaves Count the main leaves in the pack and compare the spring layout.
Before you send it
Check the basics first.
- Check this part number against the spring tag, old invoice, or service record for Ford E3TZ 5560M.
- Measure the length marks on the removed spring: La / a-side length: 25"; Lb / b-side length: 31".
- Check the hardware marks: Ø Eye / eye diameter: A-side 1-5/8" · B-side 1-3/8".
- Confirm the secondary checks: C / camber / free arch: 6-7/8"; W / width / thickness: Width 3" · Thickness 3/8" × 13/16"; leaf count: 4+1 leaves.
- Load or weight details on this page: Load capacity: 2810 lb. Use them as secondary checks only, not as fit confirmation by themselves.
- Vehicle name and OEM numbers narrow the search. They do not confirm fit by themselves.