This clutch friction disc set transfers torque from the engine to the transmission input shaft through a stack of alternating friction discs and separator plates. The set includes nine friction discs, nine springs, and seven spacers that together determine the clamping force and engagement characteristics of the clutch pack. As the friction material wears, the effective clamping load decreases, leading to slip under load and gradual loss of drive. The original parts match the original spring rate and friction material thickness, so the clutch engagement timing and torque capacity remain as designed. On reassembly, ensure the discs are installed in the correct order and that the pressure plate bolts are torqued to specification.