From the Ford book . . .
CAPACITIES AND SPECIFICATIONS - 6.2L Capacities
WARNING: The air conditioning refrigerant system contains refrigerant under high pressure. Only qualified personnel should service the air conditioning refrigerant system. Opening the air conditioning refrigerant system can cause personal injury.
Item Capacity
Engine oil (with oil filter). 7.0 qt (6.6 L)
Engine coolant. 21.3 qt (20.2 L)
Brake fluid. Between MIN and MAX on brake fluid reservoir
Front axle. 2.7 qt (2.6 L)
Rear axle-10.5 inch with Electronic Locking 3.3–3.5 qt (3.1–3.3 L) Differential.
Rear axle-10.5 inch without Electronic 3.5–3.6 qt (3.3–3.4 L) Locking Differential.
Rear axle-Dana M300.
3.78 qt (3.58 L)
1
Automatic transmission fluid (6R100).
13.9 qt (13.2 L)
2
Automatic transmission fluid (6R140).
17.4 qt (16.5 L)
2
Transfer case fluid. 1.9 qt (1.8 L)
Windshield washer fluid. Fill as required
Fuel tank (incomplete vehicle, middle 26.5 gal (100.3 L) location).
Fuel tank (All except 176 inch wheelbase 34.0 gal (128.7 L) and incomplete vehicles).
Fuel tank (176 inch wheelbase). 48.0 gal (181.7 L)
Fuel tank (incomplete vehicle, aft axle 40 gal (151.4 L) location).