USA Standard Gear performance axles are constructed from high-tensile strength 4340 chromoly, use superior manufacturing methods, and feature advanced heat-treating technologies to create an axle of unparalleled quality and durability.
D60 88-98 FORD 35spl 4340 FRONT AXLE KIT w/ 733X (ASSM_REQ)

Fitment:
Ford F-350 Base 1997
Ford F-350 Custom 1988
Ford F-350 Custom 1989
Ford F-350 Custom 1990
Ford F-350 Custom 1991
Ford F-350 Custom 1992
Ford F-350 Eddie Bauer 1995
Ford F-350 Special 1995
Ford F-350 Special 1996
Ford F-350 XL 1988
Ford F-350 XL 1989
Ford F-350 XL 1990
Ford F-350 XL 1991
Ford F-350 XL 1992
Ford F-350 XL 1993
Ford F-350 XL 1994
Ford F-350 XL 1995
Ford F-350 XL 1996
Ford F-350 XL 1997
Ford F-350 XLT 1993
Ford F-350 XLT 1994
Ford F-350 XLT 1995
Ford F-350 XLT 1996
Ford F-350 XLT 1997
Ford F-350 XLT Lariat 1988
Ford F-350 XLT Lariat 1989
Ford F-350 XLT Lariat 1990
Ford F-350 XLT Lariat 1991
Ford F-350 XLT Lariat 1992