Ford F250, F350 (except Super Duty) Spring Codes
Spring Code
Year Range
Aftermarket Part #
Superceded to
Comments
5
1981 to 1997
43-474
Can Use 43-476 in pairs, 215lb more capacity per spring
6
43-476
7
43-478
8
1985 to 1997
43-516
9
43-498
Q
1995 to 1997
43-678
R
43-628
Can use 43-536 in pairs, 485lb per spring more capacity
S
43-522
Can use 43-536 in pairs, 240lb per spring more capacity
T
43-536
Y
1981 to 1986
43-492