Hi-Performance Ford C4 Rebuild Kit with Raybestos Red Stage 1 Friction Clutches 1970-81 This rebuild kit includes all of the High Performance Red Raybestos Friction Plates, Sealing Rings, Metal Clad Seals, Gaskets, Orings & Rubber Piston Seals + Filter, Band, Modulator Pump Bushing, and Extension Housing Bushing. Please Note: The band adjustment nuts no longer come in the gasket set. Note: C4 transmissions came with different style modulators over the years. 90% of them require the green stripe. This is the modulator that we include with our kits. If you need any of other styles, please let us know and we will happy to accommodate. 1964-72 - Screw in ( White Stripe) 1973-76 Push in (Dual W/ Red Stripe) 1974-86 Push in (Single W/Green Stripe) 1973-81 Push in (Single with Yellow Stripe) Stage-1 About: Raybestos Stage-1 Performance frictions are an affordable solution for performance applications that may not require the capacity of the Gen2 Blue Plate Special, but do require a friction plate that can handle the demands that a stock tan or high energy plate cannot. Stage-1 frictions are not limited to performance, but also enhance heavy duty applications by increasing holding capacity, while being able to withstand higher temperatures associated with towing heavy loads. Raybestos Stage-1 Performance frictions are the best choice for street rods, tuner cars and mild street strip applications. Advantages: · Withstands high horsepower · Greater torque capacity · Maintains piston travel · Optimum performance · Higher heat resistance · Smooth engagements · Enhanced shift feel