Fits: 4x2, 143.5" wheelbase, Crew Cab, Without hybrid option; (Automatic Transmission), 6 speed (opt MYC), 5.3L; 4x2, 143.5" wheelbase, Extended Cab, (Automatic Transmission), 6 speed (opt MYC), Without 6.2LChange Fit Option... SILVERADO 1500 PICKUP 4x2 119" wheelbase (Regular Cab, 6' 6" box) (Automatic Transmission) 4 speed (opt M30) SILVERADO 1500 PICKUP 4x2 119" wheelbase (Regular Cab, 6' 6" box) (Automatic Transmission) 6 speed (opt MYC) SILVERADO 1500 PICKUP 4x2 133" wheelbase (Regular Cab, 8' box) (Automatic Transmission) 4 speed (opt M30) 3.23 ratio (opt GU5) speedometer calibration (opt VZ2) SILVERADO 1500 PICKUP 4x2 133" wheelbase (Regular Cab, 8' box) (Automatic Transmission) 4 speed (opt M30) 3.23 ratio (opt GU5) Without speedometer calibration SILVERADO 1500 PICKUP 4x2 133" wheelbase (Regular Cab, 8' box) (Automatic Transmission) 4 speed (opt M30) 3.42 axle ratio (opt GU6) speedometer calibration (opt VZ2) SILVERADO 1500 PICKUP 4x2 133" wheelbase (Regular Cab, 8' box) (Automatic Transmission) 4 speed (opt M30) 3.42 axle ratio (opt GU6) Without speedometer calibration SILVERADO 1500 PICKUP 4x2 133" wheelbase (Regular Cab, 8' box) (Automatic Transmission) 4 speed (opt M30) 3.73 ratio (opt GT4) SILVERADO 1500 PICKUP 4x2 133" wheelbase (Regular Cab, 8' box) (Automatic Transmission) 6 speed (opt MYC) SILVERADO 1500 PICKUP 4x2 143.5" wheelbase Crew Cab hybrid option (opt HP2) SILVERADO 1500 PICKUP 4x2 143.5" wheelbase Crew Cab Without hybrid option (Automatic Transmission) 4 speed (opt M30) SILVERADO 1500 PICKUP 4x2 143.5" wheelbase Crew Cab Without hybrid option (Automatic Transmission) 6 speed (opt MYC) 5.3L SILVERADO 1500 PICKUP 4x2 143.5" wheelbase Crew Cab Without hybrid option (Automatic Transmission) 6 speed (opt MYC) 6.2L SILVERADO 1500 PICKUP 4x2 143.5" wheelbase Extended Cab (Automatic Transmission) 4 speed (opt M30) SILVERADO 1500 PICKUP 4x2 143.5" wheelbase Extended Cab (Automatic Transmission) 6 speed (opt MYC) 6.2L SILVERADO 1500 PICKUP 4x2 143.5" wheelbase Extended Cab (Automatic Transmission) 6 speed (opt MYC) Without 6.2L SILVERADO 1500 PICKUP 4x2 157.5" wheelbase (Extended Cab, 8' box) (Automatic Transmission, 6 speed, opt MYC) ID 7379 SILVERADO 1500 PICKUP 4x2 157.5" wheelbase (Extended Cab, 8' box) (Automatic Transmission, 6 speed, opt MYC) ID AAJ5 SILVERADO 1500 PICKUP 4x2 157.5" wheelbase (Extended Cab, 8' box) (Automatic Transmission, 6 speed, opt MYC) ID AALA SILVERADO 1500 PICKUP 4x2 157.5" wheelbase (Extended Cab, 8' box) (Automatic Transmission, 6 speed, opt MYC) ID AALS SILVERADO 1500 PICKUP 4x2 157.5" wheelbase (Extended Cab, 8' box) (Automatic Transmission, 6 speed, opt MYC) ID AATR SILVERADO 1500 PICKUP 4x4 119" wheelbase (Regular Cab, 6' 6" box) SILVERADO 1500 PICKUP 4x4 133" wheelbase (Regular Cab, 8' box) SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab hybrid option (opt HP2) SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab Without hybrid option ID AACJ SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab Without hybrid option ID AACL SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab Without hybrid option ID AACM SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab Without hybrid option ID AAJG SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab Without hybrid option ID AALW SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab Without hybrid option ID AALX SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab Without hybrid option ID AAMF SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab Without hybrid option ID RH7 SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Crew Cab Without hybrid option ID SK1 SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab hybrid option (opt HP2) SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab Without hybrid option ID AACJ SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab Without hybrid option ID AACL SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab Without hybrid option ID AACM SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab Without hybrid option ID AAJG SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab Without hybrid option ID AALW SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab Without hybrid option ID AALX SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab Without hybrid option ID AAMF SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab Without hybrid option ID RH7 SILVERADO 1500 PICKUP 4x4 143.5" wheelbase Extended Cab Without hybrid option ID SK1 SILVERADO 1500 PICKUP 4x4 157.5" wheelbase (Extended Cab, 8' box) SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MW7 ID AANV SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MW7 ID AATM SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MW7 ID ADD7 SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MW7 ID KAFP SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MW7 ID SC6 SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MYD ID AAD1 SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MYD ID AAD2 SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MYD ID AAGP SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MYD ID AAH2 SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MYD ID AAPU SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MYD ID AAPX SILVERADO 2500 PICKUP 4x2 133.7" wheelbase (Regular Cab, 8' box) transmission opt MYD ID KAFN SILVERADO 2500 PICKUP 4x2 144.2" wheelbase (Extended Cab, 6' 6" box) transmission opt MW7 SILVERADO 2500 PICKUP 4x2 144.2" wheelbase (Extended Cab, 6' 6" box) transmission opt MYD SILVERADO 2500 PICKUP 4x2 153.7" wheelbase (Crew Cab, 6' 6" box) transmission opt MW7 SILVERADO 2500 PICKUP 4x2 153.7" wheelbase (Crew Cab, 6' 6" box) transmission opt MYD SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MW7 ID AAFB SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MW7 ID AANW SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MW7 ID AATN SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MW7 ID KAF5 SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MW7 ID SD1 SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MYD ID AAFA SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MYD ID AAMU SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MYD ID AAPM SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MYD ID AATP SILVERADO 2500 PICKUP 4x2 158.2" wheelbase (Extended Cab, 8' box) transmission opt MYD SC9 SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MW7 ID AAFH SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MW7 ID AANZ SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MW7 ID AATL SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MW7 ID KAFW SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MW7 ID SD6 SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID AAFG SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID AANY SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID AATK SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID KAFU SILVERADO 2500 PICKUP 4x2 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID SD5 SILVERADO 2500 PICKUP 4x4 133.7" wheelbase (Regular Cab, 8' box) transmission opt MW7 SILVERADO 2500 PICKUP 4x4 133.7" wheelbase (Regular Cab, 8' box) transmission opt MYD SILVERADO 2500 PICKUP 4x4 144.2" wheelbase (Extended Cab, 6' 6" box) transmission opt MW7 SILVERADO 2500 PICKUP 4x4 144.2" wheelbase (Extended Cab, 6' 6" box) transmission opt MYD SILVERADO 2500 PICKUP 4x4 153.7" wheelbase (Crew Cab, 6' 6" box) transmission opt MW7 SILVERADO 2500 PICKUP 4x4 153.7" wheelbase (Crew Cab, 6' 6" box) transmission opt MYD SILVERADO 2500 PICKUP 4x4 158.2" wheelbase (Extended Cab, 8' box) transmission opt MW7 SILVERADO 2500 PICKUP 4x4 158.2" wheelbase (Extended Cab, 8' box) transmission opt MYD SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MW7 ID AAPF SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MW7 ID AAPH SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MW7 ID KAGC SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MW7 ID SF8 SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID AAF5 SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID AAH6 SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID AAHG SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID AAN5 SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID AATC SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID KAF3 SILVERADO 2500 PICKUP 4x4 167.7" wheelbase (Crew Cab, 8' box) transmission opt MYD ID SF7 SILVERADO 3500 PICKUP 4x2 Chassis Cab Crew Cab (171.5" wheelbase) transmission opt MW7 SILVERADO 3500 PICKUP 4x2 Chassis Cab Crew Cab (171.5" wheelbase) transmission opt MYD ID AAFR SILVERADO 3500 PICKUP 4x2 Chassis Cab Crew Cab (171.5" wheelbase) transmission opt MYD ID AAN4 SILVERADO 3500 PICKUP 4x2 Chassis Cab Crew Cab (171.5" wheelbase) transmission opt MYD ID AATB SILVERADO 3500 PICKUP 4x2 Chassis Cab Crew Cab (171.5" wheelbase) transmission opt MYD ID KAF2 SILVERADO 3500 PICKUP 4x2 Chassis Cab Crew Cab (171.5" wheelbase) transmission opt MYD ID SF4 SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MQ7 (export) ID AADT SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MQ7 (export) ID AAGP SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MQ7 (export) ID AAS7 SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MW7 ID AAFK SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MW7 ID AAN1 SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MW7 ID AATF SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MW7 ID KAFY SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MW7 ID SD8 SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MYD ID AAFL SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MYD ID AAN2 SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MYD ID AATH SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MYD ID KAFZ SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 137.5" wheelbase transmission opt MYD ID SD9 SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 162" wheelbase transmission opt MW7 SILVERADO 3500 PICKUP 4x2 Chassis Cab Regular Cab 162" wheelbase transmission opt MYD SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Crew Cab 6' 6" box (153.7" wheelbase) transmission opt MW7 SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Crew Cab 6' 6" box (153.7" wheelbase) transmission opt MYD SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Crew Cab 8' box (167.7" wheelbase) transmission opt MW7 SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Crew Cab 8' box (167.7" wheelbase) transmission opt MYD ID AAFJ SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Crew Cab 8' box (167.7" wheelbase) transmission opt MYD ID AAN0 SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Crew Cab 8' box (167.7" wheelbase) transmission opt MYD ID AATD SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Crew Cab 8' box (167.7" wheelbase) transmission opt MYD ID KAFX SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Crew Cab 8' box (167.7" wheelbase) transmission opt MYD ID SD7 SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MW7 ID AAFB SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MW7 ID AANW SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MW7 ID AATN SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MW7 ID KAF5 SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MW7 ID SD1 SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MYD ID AAFC SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MYD ID AANX SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MYD ID AATJ SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MYD ID KAFT SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) transmission opt MYD ID SD2 SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Regular Cab (8' box, 133.7" wheelbase) transmission opt MW7 ID AANV SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Regular Cab (8' box, 133.7" wheelbase) transmission opt MW7 ID AATM SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Regular Cab (8' box, 133.7" wheelbase) transmission opt MW7 ID ADD7 SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Regular Cab (8' box, 133.7" wheelbase) transmission opt MW7 ID KAFP SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Regular Cab (8' box, 133.7" wheelbase) transmission opt MW7 ID SC6 SILVERADO 3500 PICKUP 4x2 Excluding Chassis Cab Regular Cab (8' box, 133.7" wheelbase) transmission opt MYD SILVERADO 3500 PICKUP 4x4 Chassis Cab Crew Cab (171.5" wheelbase) SILVERADO 3500 PICKUP 4x4 Chassis Cab Regular Cab 137.5" wheelbase SILVERADO 3500 PICKUP 4x4 Chassis Cab Regular Cab 162" wheelbase SILVERADO 3500 PICKUP 4x4 Excluding Chassis Cab Crew Cab 6' 6" box (153.7" wheelbase) SILVERADO 3500 PICKUP 4x4 Excluding Chassis Cab Crew Cab 8' box (167.7" wheelbase) transmission opt MW7 SILVERADO 3500 PICKUP 4x4 Excluding Chassis Cab Crew Cab 8' box (167.7" wheelbase) transmission opt MYD SILVERADO 3500 PICKUP 4x4 Excluding Chassis Cab Extended Cab (8' box, 158.2" wheelbase) SILVERADO 3500 PICKUP 4x4 Excluding Chassis Cab Regular Cab (8' box, 133.7" wheelbase)