Year
Make
Model
Submodel
Notes
2005
Chevrolet
Silverado 1500 HD
Base
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2003, 2005
Chevrolet
Silverado 1500 HD
LS
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2003, 2005 - 2006
Chevrolet
Silverado 1500 HD
LT
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2005
Chevrolet
Silverado 2500 HD
Base
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2006
Chevrolet
Silverado 2500 HD
LS
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2010
Chevrolet
Silverado 2500 HD
LT
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2007 - 2010
Chevrolet
Silverado 2500 HD
LTZ
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2003 - 2010
Chevrolet
Silverado 2500 HD
WT
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2003, 2005 - 2006
GMC
Sierra 1500 HD
SLE
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2003, 2005 - 2006
GMC
Sierra 1500 HD
SLT
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2002 - 2005
GMC
Sierra 2500 HD
Base
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2002, 2006
GMC
Sierra 2500 HD
SL
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2010
GMC
Sierra 2500 HD
SLE
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2001 - 2002, 2004 - 2010
GMC
Sierra 2500 HD
SLT
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593
2003 - 2010
GMC
Sierra 2500 HD
WT
RPO codes starting with "FT" (FT2, FT3, FT4, FT5, FT6, FT7 should use Rough Country Part #8592 RPO codes starting with "FK or FF" (FK2 - FK3 - FF6 - FF7 - FF8 - FF9) should use Rough Country Part #8593