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GMC Truck
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1988
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Suburban 3/4 Ton 2WD V8-379 6.2L DSL
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Repair and Diagnosis
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Transmission and Drivetrain
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Manual Transmission/Transaxle
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Testing and Inspection
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Diagnosis By Symptom - Muncie 5LM60 (Hm-290) 4 & 5 Speed
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Hard Shift - Muncie 5LM60 (Hm-290) 4 & 5 Speed
Hard Shift - Muncie 5LM60 (Hm-290) 4 & 5 Speed
1.
Wrong fluid.
2.
Binding shift rails.