Dodge 68RFE 4WD Transmission Raybestos GPZ High Performance Deluxe Rebuild Kit 2007-2012 R72008CGPZ Raybestos Powertrain GPZ plates greatly increase transmission performance and durability. This state-of-the-art friction material far exceeds OE material to withstand high stress, high temperatures and repeated cycling. GPZ plates outstanding performance benefits are perfect for heavy duty vehicles and high-stress driving. Testing GPZ revolutionary friction material shows that it outperforms OE materials by as much as 20%. Plus, its performance improves as the power increases. This kit has all Raybestos GPZ clutches, Steels, Internal 4wd filter external spin on filter, Sonnax Pump Bushing, Bonded Pistons, Sealing Rings, Metal Clad Seals, Gaskets, O-rings & Rubber Piston Seals. Note: If you need the 2wd filter see our other listing