Ford Bronco II Spring Codes
Spring Code
Year Range
Aftermarket Part #
Superceded to
Comments
B
1984
42-815
Use 5 leaf 42-817 in pairs (110lb per side more capacity) or convert to 42-821 which has different rear bushings but a better price
C
42-817
Can convert to 42-821 which has different rear bushings but a better price
D
1985
H
1986 to 1988
42-819
Convert to 42-821 5 Leaf in pairs 110lb more load capacity and a better priced stock item
1989
43-943
J
42-821
1989 to 1990
43-991
43-945
Convert to 42-821 5 Leaf in pairs, a better priced stock item