Fits Rear; High Country or LT Model or LT Trail Boss or LTZ Model or RST Model; M14X1.5X58; 3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),Enhanced Towing Performance Package (NHT)or Rear; Custom or Custom Trail Boss or SSV Model or WT Model; M14X1.5X58; Exc. Positraction Limited-Slip Rear Axle (G80),Enhanced Towing Performance Package (NHT); 3.42 Rear Axle Ratio (GU6)or Rear; High Country or LT Model or LT Trail Boss or LTZ Model or RST Model; M14X1.5X58; Exc. Positraction Limited-Slip Rear Axle (G80),Enhanced Towing Performance Package (NHT); 3.23 Rear Axle Ratio (GU5)or Rear; Crew Cab Pickup; 4 door; Custom or Custom Trail Boss or SSV Model or WT Model; 6 speed transmission; 69.9" bed; 147.4" Wheelbase; 6 Speed Automatic Trans.; M14X1.5X58; 3.73 Rear Axle Ratio (GT4),Positraction Limited-Slip Rear Axle (G80),Enhanced Towing Performance Package (NHT)or Rear; Custom or Custom Trail Boss or SSV Model or WT Model; M14X1.5X58; Exc. Enhanced Towing Performance Package (NHT); 3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80),Rear Axle; Supplier A (SU7)or Rear; High Country or LT Model or LT Trail Boss or LTZ Model or RST Model; M14X1.5X58; Exc. Enhanced Towing Performance Package (NHT); 3.23 Rear Axle Ratio (GU5),Positraction Limited-Slip Rear Axle (G80),Rear Axle; Supplier A (SU7)