Ford Super Duty Rear Spring Codes
Spring Code
Year Range
Aftermarket Part #
Superceded to
Helper #
Comments
8
1988 to 1993
43-899
43-901
+
43-903 Helper
1994 to 1997
43-1089
43-1215 Helper
43-1211
A
1999 to 2001
43-1341
43-1261
2001
43-1381
B
1999 to 2002
43-1363
2002
43-
43-1481 Helper
2003 to 2004
43-1435
2005
43-1535
43-1587
43-1291 Helper
2005 to 2006
43-1585
C
1999
43-1263
2000
43-1343
2001 to 2002
43-1371
2003
43-1477
2004
43-1543
43-1517
43-1519
43-1577 Helper
2006
43-1727
D
43-1265
2000 to 2003
43-1327
2002 to 2003
43-1409
43-1493 Helper
43-1489
43-1591
43-1593
43-1579 Helper
E
43-1267
2000 to 2002
43-1329
43-1495
43-1499 Helper
F
43-1499
43-1753
43-1751
Build to Order
H
43-1671
43-1605
43-1583 Helper
2005 to 2007
43-1603
2008
43-1709
43-1711
J
43-1465
43-1285
43-1523
43-1599
43-1581 Helper
43-1597
43-1697
43-1699
K
43-1529
43-1635
M
43-1269
2000 to 2004
43-1345
N
43-1275
43-1289
2000 to 2001
43-1641
43-1453
43-1483
P
43-1471
Duplicate code coverage for 2004
43-1445
S