1991-ON Part No. RFMAX-001 This Raybestos Powertrain MaxPak increases performance by adding more friction plates than OE. To further increase capacity, it also utilizes our Stage-1 Performance friction plates. Stage-1 Performance frictions handle the demands that a stock tan or high energy plate cannot by increasing holding capacity, while withstanding higher temperatures. NOTE: This module should be used with RSMAX-001. RFMAX-001 includes installation instructions. Raybestos Powertrain GM 4L80E MaxPak features 5 4th Clutch Stage-1, 3 Overrun Stage-1, 14 Forward/Direct Stage-1, 5 Intermediate Stage-1 and must be used with RSMAX-001 Kolene Steel Clutch Pack Module