1993 GMC Suburban Owner's Manual - Page 288
1993 GMC Suburban Manual
Page 288 highlights
K2343 Refer to theMaintenanceScheduletodeterminehowoftenyoushouldcheck what to add. See thefluidlevelinyourclutchmastercylinderreservoirand Fluids andLubricants" in "OwnerChecksandServices"and"Recommended theIndex. K2344 The proper fluid should be added if the level does not reach the bottom of thediaphragm when it's in place in thereservoir.Seetheinstructions on the reservoir cap. 6-22
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