Tcs servo kit

This TCS Canada servo and band-apply upgrade kit is standard equipment in every Thompson Diesel Performance 47RE and 48RE build. Designed to significantly improve band apply force and durability, this kit addresses one of the most common weak points in factory 47/48RE transmissions—especially in towing and high-horsepower applications. By increasing apply ratio and sealing efficiency, this setup delivers firmer, more consistent shifts while reducing band slip and heat buildup under load. Kit Includes: Billet aluminum dual-ring servo Billet aluminum accumulator piston 4.2 ratio band lever Heavy-duty strut and anchor Components engineered by TCS Canada Benefits: Increased band holding capacity Improved apply pressure and shift consistency Reduced band wear and heat Proven reliability for towing, street performance, and race applications This exact kit is used in all TDP 47RE and 48RE transmission build kits, from mild street builds to high-horsepower applications.