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Home >> GMC >> 1987 >> Forward Control 4.8 T, Standard >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Servicing - A/T >> Lubrication >> Draining & Refilling
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Draining & Refilling

Loosen transmission oil pan bolts. Pry pan loose with a large screwdriver and allow fluid to drain. Remove oil pan, gasket and filter or filter screen. Replace paper element filter (if used). Clean filter screen and pan with solvent and blow dry with compressed air. Install oil pan with new gasket. Add fluid to proper mark on dipstick.