Replacing your Jeep’s transfer case assembly gives you a noticeable boost in performance while increasing horsepower and adjusting torque levels. Installing larger tires and wheels adds strain to your transfer case and replacing the assembly can be a wise investment. When you’re looking to improve crawling and towing performance, 4WD carries transfer case assemblies to realize better handling and improve gas mileage. Your transfer case transfers the torque to your Jeep’s rear axle in 2-wheel drive and splits it between the front and rear in 4-wheel drive. When your applications warrant a transfer case assembly upgrade, 4WD has you covered.