When functionality is your primary concern, reliability matters. Our Guardian series of transmissions was specifically engineered to maintain OE standards in regards to NVH (noise vibration harmonics) factors. What you will find is a product that will function at the highest level but also offers the refinement that you demand.

The SunCoast Guardian Heavy Duty (HD) line of 48RE transmissions is a specialty line designed around the stress and rigors demanded with heavy duty towing, hauling and work applications.
Every aspect of the Guardian HD transmission line is strategically engineered and designed around functionality, reliability, and strength in the light, medium and heavy duty towing applications. This Guardian HD series of transmissions is built to perform in tough conditions, day in and day out, and is designed for use in heavy duty industrial, or commercial operations.
Some of the key features of this new 48RE Guardian line of heavy duty transmissions are our SunCoast Single-Disc Billet Torque Converter, billet accumulator piston, high flow transmission filter, gasket kit, thrust washer kit, front pump bushing, and high-performance carbon fiber band. Also included are a billet band lever, strut and anchor, and the addition of a Mag-Hytec deep pan.