Transgo RE5R05A-HD2 Transmission Reprogramming Kit. Fits 4 Speed Nissan RE5R05A Jatco 5 Speed Rear Wheel Drive & 4WD. Does not fit Front Wheel Drive JF-506E. This Shift Correction Kit from Transgo will improve all RE5R05A Transmissions. Ideal for: Hot Rod- Street Show Off! This kit will Correct/Improve: Increased Clutch Plate Durability. Provides Short Firm Shifts. A Must for all these Trucks ! Fits: Titan , Armada , FX45 , QX45 , and all other RE5RO5A Jatco Automatics. This kit is designed for Turbo or Supercharging with/without Nitrous injection. This kit is recommended for Professional installation only!! This Shift Correction Kit will come with installation directions.