Fits Heavy Duty HEMI MDS Engine.; 220 Amp Alternator, Man Shift-On-The-Fly Transfer Case; Exc. Dual Alternators Rated at 380 Amps; Mega Cab; 8-Spd Auto 8HP75-LCV Trans.or Heavy Duty HEMI MDS Engine.; 220 Amp Alternator, Man Shift-On-The-Fly Transfer Case; Exc. Dual Alternators Rated at 380 Amps; Regular Cab; 8 Foot Bed; 8-Spd Auto 8HP75-LCV Trans.or Heavy Duty HEMI MDS Engine.; 220 Amp Alternator, Man Shift-On-The-Fly Transfer Case; Exc. Dual Alternators Rated at 380 Amps; Crew Cab; 6'4" Box; 8-Spd Auto 8HP75-LCV Trans.or Heavy Duty HEMI MDS Engine.; 220 Amp Alternator, Man Shift-On-The-Fly Transfer Case; Exc. Dual Alternators Rated at 380 Amps; Crew Cab; 8' Box; 8-Spd Auto 8HP75-LCV Trans.