You may have to turn the crank over to slide the pan out, like where as little of the crank is sticking out of the block as possible. Here are proper instructions.
Removal ("T" Series Pickup, Jimmy & Sonoma 4WD)
Disconnect battery. Remove engine oil dipstick and accessory drive belt splash shield. Raise and support vehicle. Drain crankcase. Remove front axle shield and transfer case shield. Remove brake line clips from crossmember.
Remove second crossmember. Remove converter hanger bolts and exhaust pipe clamp from converter.
Disconnect exhaust pipes from manifolds. Slide exhaust pipe rearward. Disconnect front drive shaft from differential.
Remove flywheel cover. Remove starter motor. Remove idler arm to frame bolts. Remove differential housing mounting bolts from bracket (right side) and frame (left side).
Move differential housing forward. Remove front engine mount through bolts. Raise and support engine. Remove oil pan bolts, oil pan and gasket.