dday guys i have a cox mod 5398a and have a few queries 1 is there a servicable limit on the drive cone diameter 2 in the user manual they refer to a setting gauge for the clearance between the cone and driveplates any idea of this dimension 3 it is a 40 inch deck with blade approx 140 mm long clock wise rotation viewed from above and approx 3/8 bolts any idea of the part no many thanks and regards skinny