| Engine oil & filter | 2F: 8 L (≈8.5 qt) with filter · factory spec API SF (use a modern oil suited to a flat-tappet engine) | Baseline now; then per your owner's-manual schedule | Fill to the dipstick rather than the book figure; one IH8MUD 2F owner uses 8 qt with a filter change.Oil filter, OEM (FJ40/45/55/60/62/FJ80 1969–96) · Cruiser Corps ↗Oil drain plug gasket (1985 4.2L) · RockAuto ↗ |
| Air filter | Paper element | Baseline now | Check the air cleaner's vacuum hoses while the lid is off.Air filter, OEM, FJ40/45/55/60 1975–87 · Cruiser Corps ↗Air filter, FJ40/FJ60 1975–87 · Cruiser Corps ↗ |
| Ignition tune-up | Plugs, cap, rotor & wires · gap confirm in manual | Baseline now | Corsetti's first check for a stumbling FJ60 is a loose or broken vacuum hose or wiring connection, so do ignition and vacuum before the carb.NGK spark plugs, FJ40/45/55/60/62/FJ80 1958–92 · Cruiser Corps ↗Distributor cap, FJ40/60/62/FJ80 1980–92 · Cruiser Corps ↗Distributor rotor, FJ40/45/60 1980–87 · Cruiser Corps ↗Spark plug wire set, premium reproduction, FJ40/45/60 1980–87 · Cruiser Corps ↗ |
| Valve lash | Adjustable rockers · clearances confirm in manual | Check now; then periodically | Like every F-series engine, the 2F wants periodic valve adjustments (Hagerty's FJ55 guide says the same of the F and 2F).Valve cover gasket, FJ40/45/60 1980–87 · Cruiser Corps ↗ |
| Coolant & thermostat | Ethylene-glycol coolant · 16.5 L | Baseline flush now | Coolant smell or a damp passenger carpet points to the front heater core.Thermostat, OEM/Aisin (F/2F/3F, 1958–92) · Cruiser Corps ↗Upper thermostat gasket, OEM (1958–92) · Cruiser Corps ↗Water bypass hose, OEM (FJ40/45/55/60 1958–87) · Cruiser Corps ↗ |
| Manual transmission | API GL-4/GL-5, SAE 90 · H41 4-speed 3.5 L (H42 confirm in manual) · H55F 5-speed (swapped) 4.9 L | Baseline now | H55F swap guides call for the fifth-gear oiler to be fitted; confirm it's there.Gear oil (1985 4.2L) · RockAuto ↗ |
| Transfer case | API GL-4/GL-5, SAE 90 · 2.2 L (with H41/H55F) | Baseline now | Check the front output seal for weeping.Gear oil (1985 4.2L) · RockAuto ↗Transfer case gasket kit (Japanese), FJ40/60/62 8/1980–90 · Cruiser Corps ↗ |
| Front differential | API GL-5 hypoid 80W-90 · 3.0 L | Baseline now | Fill to the bottom of the fill hole.80W-90 GL-5 gear oil (1985 4.2L) · RockAuto ↗Differential gasket, FJ40/45/55/60/62 1958–90 · Cruiser Corps ↗ |
| Rear differential | API GL-5 hypoid 80W-90 · 2.5 L · LSD oil for limited-slip | Baseline now | 80W-90 GL-5 gear oil (1985 4.2L) · RockAuto ↗Differential gasket, FJ40/45/55/60/62 1958–90 · Cruiser Corps ↗ |
| Front knuckles & Birfields | Molybdenum-disulfide lithium-base grease, NLGI-2 | Check now; repack with any seal job | Corsetti's tell: grease sludge leaking from the knuckles where axle oil has got past the seals.Knuckle rebuild kit (Japanese), FJ40/45/55/60/62 1975–90 · Cruiser Corps ↗Steering knuckle wiper kit, OEM (1958–90) · Cruiser Corps ↗ |
| Power steering | ATF Dexron / Dexron II · 0.81 L total (0.39 L reservoir only) | Baseline flush now | Power steering fluid (1985 4.2L) · RockAuto ↗Power steering gear seal kit, FJ60/FJ62 1984–90 · Cruiser Corps ↗ |
| Brake fluid | DOT 3 (SAE J1703) | Baseline flush now | Bleed all four corners; inspect the rear hoses and hard lines.Brake fluid (1985 4.2L) · RockAuto ↗Rear brake hose / hard lines, FJ60/FJ62 1980–90 · Cruiser Corps ↗ |
| Chassis grease, U-joints & wheel bearings | Steering link ends: moly lithium NLGI-2 · driveshafts & wheel bearings: lithium multipurpose NLGI-2 | Grease now and at every oil change; repack wheel bearings now | A shake you feel in the truck but not the wheel is usually driveshaft balance or U-joints (Corsetti).Driveshaft universal joints, FJ40/45/55/60/62 1974–90 · Cruiser Corps ↗Front wheel bearing seal, 1975–97 · Cruiser Corps ↗ |
| Fuel filter, belts & hoses | Inline fuel filter · V-belts · gear-driven camshaft, so no timing belt | Replace filter now; inspect belts and hoses | Corsetti says trucks past 200,000 miles will likely need a full set of vacuum hoses too.Fuel filter, FJ40/45/55/60 1980–87 · Cruiser Corps ↗Lower radiator hose w/ AC, FJ60 1981–87 · Cruiser Corps ↗Upper radiator hose, FJ60/62/FJ80 1980–92 · Cruiser Corps ↗ |