(Vehicle Certification label on drivers door)
Want to know what the weight rating is of your springs, or looking for factory springs with a higher weight rating?
Spring codes are listed as a 2-part code on the Vehicle Certification Label. The first part identifies the front spring/torsion bar code. The second part identifies the rear spring code.
Here is a list of spring codes that can be found on the sticker in your door jamb, along with the spring rating:
Front Springs:
1 — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250, Explorer/Mountaineer)
2 — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250, Explorer/Mountaineer)
3 — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
4 — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
G — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
8 — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
9 — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
Z — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
T — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
U — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
6 — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
C — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
E — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
F — 5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
B — 5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
D — 5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
E — 5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
F — 5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
G — 5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
H — 5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
J — 5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
L — 5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
P — automatic ride contro(Explorer/Mountaineer)
A — 5310 spring (Econoline, F-150, F-250, Ranger)
B — 5310 spring (Econoline, F-150, F-250)
C — 5310 spring (Econoline, Ranger)
D — 5310 spring (Econoline, Ranger)
E — 5310 spring (Econoline, Ranger)
F — 5310 spring (Econoline, Ranger)
G — 5310 spring (Econoline, Ranger)
H — 5310 spring (Econoline, Ranger)
J — 5310 spring (Econoline, F-150, F-250)
K — 5310 spring (Econoline, F-150, F-250, Ranger)
L — 5310 spring (Econoline, F-150, F-250)
M — 5310 spring (Econoline, F-150, F-250, Ranger)
N — 5310 spring (Econoline, F-150, F-250, Ranger)
P — 5310 spring (Econoline, F-150, F-250)
R — 5310 spring (Econoline, F-150, F-250)
S — 5310 spring (Econoline, F-150, F-250)
T — 5310 spring (Econoline, Ranger)
U — 5310 spring (Econoline)
V — 5310 spring (Econoline)
W — 5310 spring (Ranger)
Z — 5310 spring (Econoline)
Rear Springs
6 — 5560 spring (Econoline)
7 — 5560 spring (Econoline)
C — 5560 spring (Econoline, F-150, Ranger)
E — 5560 spring (Ranger)
N — 5560 spring (Econoline, F-150)
P — 5560 spring (Econoline, F-150)
R — 5560 spring (Econoline, Ranger)
S — 5560 spring (Econoline, Ranger)
T — 5560 spring (Ranger)
X — 5560 spring (Ranger)
G — 5560 spring (Econoline, F-150)
K — 5560 spring (Econoline, F-150, Ranger)
A — 5560 spring (F-150)
B — 5560 spring (F-150)
D — 5560 spring (F-150)
F — 5560 spring (F-150, Explorer/Mountaineer)
H — 5560 spring (F-150, Explorer/Mountaineer)
J — 5560 spring (F-150)
L — 5560 spring (F-150, Explorer/Mountaineer)
1 — 5560 spring (F-250)
2 — 5560 spring (F-250)
3 — 5560 spring (F-250, Ranger)
4 — 5560 spring (F-250)
X — 5580 spring, load-leveling suspension (F-250)
Y — 5580 spring, load-leveling suspension (F-250)