Sonnax Line Pressure Booster Kit - Ford 5R55W Transmission

Sonnax Line Pressure Booster Kit for the Ford 5R55W transmission. The 5R55W shares many valve body issues with the 5R55S. This shift improvement kit recalibrates the valve body to deliver firmer, more consistent shifts while reducing slippage and heat buildup that causes premature clutch pack failure.

Includes detailed installation instructions with color-coded diagrams. No special tools required beyond standard valve body rebuild equipment. Proven to extend transmission life by reducing clutch apply times.

Fitment: 2002-2010 Ford Explorer, 2002-2005 Mercury Mountaineer

Brand: Sonnax