PA, Vehicles (improved presentation) : The height should be L = 137 * 3 mm from the underside of the pedal plate, (with the rubber pad in place) to the floor panel. To obtain this measurement, unscrew the lock nut (1) and adjust the stop screw (2). 2. Adjust the length of the sheath : The clearance between the end of the connecting rod (5) and the clutch casing must be J' = 2,5 to 3,5 mm.