K 3500 1 Ton Pickup 4WD V8-379 6.2L DSL VIN J FI (1983)
CIRCLE LEAKAGE POINT
FIGURE 1 - DEPRESSING ROCKER LEVER
Note 1 Check pump alignment marks and set to factory specifications.
Note 2 (See Figure 1) Depress rocker lever on side of pump. Engine sound and speed should change.