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AUTOMATIC TRANSMISSION (AW30-40LE) 7A–135 248RY00030 247RY00034 252RY00027 248RY00031 7. Direct clutch piston Place the direct clutch drum onto the OD support. INSPECTION AND REPAIR Check piston return spring Using calipers, measure the free length of the return spring. Check discs Using a micrometer, measure the thickness of the discs. If the thickness is less than the minimum, replace the disc. Check direct clutch piston Check that check ball is free by shaking the piston. mm (in.) Standard 21.3 (0.839) mm (in.) Minimum thickness 1.84 (0.0724) |