Depending on the type or manufacturer of the clutch pack you could have 7, 8 or 9 friction plates. The more important factor is the pack width. Build the pack up on the bench and then measure it's thickness. You want 35.5 - 36.5mm Use different steel plates to get the thickness. They are available in 1.5mm and 2mm. Use a friction plate first, then alternate them. Finish with a steel plate under the pressure plate. You could end up with two steels going in last depending upon the number of friction plates.