THIS REBUILD KIT IS FOR THE NEW STYLE BALL SPLINE TRANSMISSION WITH 2 SEALS ( 1 FRONT & 1 REAR ) IN THE BALL SPLINE ASSEMBLY.THIS CHANGE WAS MADE IN 2005. HAS 3 GREASE ZIRKS , RACES,SEALS AND BALLS Housing Rebuild Kit, Ball Bearings / Grease / Seals / Wear Ring, Bert Ball Spline Tailshaft Housings, Kit