Specs, fluids & service · 1961–1971
International Scout 80 / 800 specs, fluids and service intervals
The numbers you need in the garage, on one page: spec sheet, capacities and service intervals, wheels and tires, and the parts to order. Sourced from owners, specialists and the factory; tags marked confirm in manual haven't been checked against a factory source yet.
Spec sheet
| MODELS | Scout 80, 800, 800A, 800B |
|---|---|
| YEARS | Late 1960 (1961 MY) – March 1971 |
| BUILT | Fort Wayne, Indiana |
| DESIGNER | Ted Ornas |
| CHASSIS | Ladder frame, leaf springs all round |
| WHEELBASE | 100 in |
| ENGINES | 152 I4 (93 hp), 152 turbo and 196 I4 (111 hp), 232 I6, 266 V8, 304 V8 |
| TRANSMISSION | Warner T-90A three-speed (Scout 80); four-speeds on many later 800s |
| TRANSFER CASE | Dana 18, later Dana 20 |
| AXLES | Dana 27 front and rear; Dana 44 rear on later trucks |
| GEARING | 3.31, 3.73 or 4.27 common |
| BRAKES | Four-wheel hydraulic drums |
By year
| YEARS | PLATFORM | ENGINE | OUTPUT | NOTES |
|---|---|---|---|---|
| 1961–1965 | Scout 80 | 152 cu in (2.5 L) slant-four | 93 hp / 137 lb-ft | Fold-down windshield, vacuum wipers on top of the glass, Dana 27s, Dana 18, three-speed. Red Carpet edition in 1964. |
| 1965–1968 | Scout 800 | 152 four; 152 turbo | 93 hp; 111 hp (turbo) | Fixed windshield, bucket seats, better heater. Turbo dropped in early 1968. |
| 1966–1968 | Scout 800 | 196 four; 232 AMC six; 266 V8 (from 1967) | 111 hp (196); others not confirmed | Sportop fiberglass roof from 1966. Four-wheel drive standard by 1968. |
| Nov 1968–1970 | Scout 800A | 196 four; 232 six (early 1969); 266 and 304 V8s | Not confirmed | Three-piece grille, black headlight bezels, Dana 44 rear, Dana 20 transfer case. Aristocrat and SR-2 packages. |
| Aug 1970–Mar 1971 | Scout 800B | 196 four; 232 six; 304 V8 | Not confirmed | Chrome headlight bezels. Comanche and six-cylinder-only SnoStar packages. |
Fluids, capacities & service intervals
Treat any early Scout as a 50-plus-year-old machine whose fluids could be any age. Baseline everything, then inspect the front knuckles, brakes and steering before trusting it on the trail. Factory capacities for the 80 and 800 weren't available in sources we could verify, so check the IH shop manual or owner's manual for those. The one firm rule from IH specialists: keep GL-5 gear oil out of the transfer case.
| ITEM | SPEC / CAPACITY | INTERVAL | NOTES & PARTS |
|---|---|---|---|
| Engine oil & filter | confirm in manual for grade and capacity | Change now, then regularly confirm in manual | Super Scout Specialists lists a canister-type oil filter for the IH four-cylinder and V8 in these Scouts. Check what your engine has before ordering.Canister-type oil filter, 4-cylinder and V8 · Super Scout Specialists ↗ |
| Ignition: points, cap, rotor, plugs | Points or Pertronix · gap and timing confirm in manual | Now, then at each tune-up | Points-type distributors on the fours are Holley or Delco. Identify yours before buying an electronic conversion.Pertronix Ignitor, 4-cylinder Holley distributor · Super Scout Specialists ↗V8 Holley distributor cap and rotor kit · Super Scout Specialists ↗ |
| Fuel filter, pump & sender | Inline filter · pump and sender condition | Filter now, then yearly | Old tanks shed rust and varnish. If the gauge is wrong, the sender is cheap. Check the tank selector valve too, if the truck has one.Plastic fuel filter for IH gas engines · Super Scout Specialists ↗Fuel pump, 1961–71 Scout 80/800 with 152/196 four · IH Parts America ↗Fuel tank sending unit, 1961–71 Scout 80/800 · IH Parts America ↗ |
| Coolant, hoses & radiator | Coolant type and capacity confirm in manual | Flush now, then every 2 years | Original radiators are often tired. Aluminum replacements are made separately for 4-cylinder and V8 trucks.Aluminum radiator, Scout 800 4-cylinder (1961–71) · Super Scout Specialists ↗Aluminum radiator, Scout 800 V8 (1966–71) · Super Scout Specialists ↗ |
| Manual transmission | Oil type and capacity confirm in manual | Drain and refill now | Silodrome says the Scout 80 used a Warner T-90A three-speed; many later 800s have four-speeds. Identify the gearbox before choosing oil. Check the mount while you're under there.Scout 80 and 800 transmission mount · Super Scout Specialists ↗ |
| Transfer case (Dana 18 / Dana 20) | SAE 90 GL-1 mineral oil, or straight 50-weight motor oil · about 2.5–3 qt (IHPA moderator's estimate) | Drain and refill now | Fill to the bottom of the filler hole with the truck level. An IHPA moderator says: "You should not use 80-90wt GL-5 gear oil in the t-case."Dana 20 transfer case gasket and seal kit · IH Parts America ↗ |
| Front & rear differentials | 80W-90 gear oil; add limited-slip additive for Power-Lok/Trac-Lok · capacity confirm in manual | Drain and refill now | One IHPA forum owner found Mobil 1 gear oil made his Power-Lok clutches chatter, while Red Line and Royal Purple did not.Differential cover gasket, Dana 27/30/44/60 · IH Parts America ↗Rear axle Trac-Loc clutch pack, Dana 44 · Super Scout Specialists ↗ |
| Front knuckles & kingpins | Inspect seals, wipers and kingpin play | Now, then every season off-road | These are closed knuckles. Torn wipers let water and grit into the kingpin bearings.Front axle knuckle seal kit (two per axle) · IH Parts America ↗ |
| Wheel bearings | Clean, inspect and repack with wheel-bearing grease | Now, then yearly or after deep water | Do the front bearings with the knuckle service, and fit new inner seals.Wheel bearing set, 1961–71 Scout 80/800 · IH Parts America ↗Front wheel bearing inner seal, 1961–71 Scout 80/800 · IH Parts America ↗ |
| Brake fluid, hoses & wheel cylinders | Fluid type confirm in manual | Flush now, then every 2 years | Rubber hoses this old should be replaced, not inspected. Note whether the truck has a single- or dual-circuit master cylinder, because dual-circuit arrived on 1967 and later 800s.CPT stainless front brake hose set, 1965–71 Scout 80/800 · IH Parts America ↗Brake hoses, Scout 80/800 · Super Scout Specialists ↗Front wheel cylinder, Scout 80/800 with 10-in Lockheed brakes · IH Parts America ↗ |
| Steering linkage & grease points | Chassis grease · inspect drag link, tie rods, steering bell joint and U-joints | Grease now, then at each oil change | Check every joint in the linkage before blaming the steering box. If it is the box, IH Parts America sells rebuilt Ross boxes for the 80 and 800.Steering bell joint kit, Scout 80/800 manual steering · IH Parts America ↗Factory drag link rebuild kit, Scout 80/800 · IH Parts America ↗CPT Gold Series tie rod and drag link, Scout 80/800 · IH Parts America ↗ |
| Charging & starting | Inspect the battery, cables, voltage regulator and starter solenoid | Now | IH Parts America lists an external voltage regulator for 1962–71 Scouts. Clean every ground while you're checking it.Voltage regulator, 1962–71 Scout 80/800 · IH Parts America ↗Starter solenoid, IH gas 4-cylinder and V8 · Super Scout Specialists ↗ |
Common Scout 80 / 800 repairs
- Floor pan and rocker replacementDIFFICULTY 4 / 5
- Swap the vacuum wipers for an electric kit (800 series)DIFFICULTY 2 / 5
- Front knuckle seals and kingpin bearings (closed-knuckle Dana)DIFFICULTY 3 / 5
- Transfer case pops out of gear: Dana 20 rebuildDIFFICULTY 4 / 5
- Front disc brake conversionDIFFICULTY 3 / 5
- Springs, shackles and bushings (fix the sag and the ride)DIFFICULTY 3 / 5
- Points to electronic ignitionDIFFICULTY 1 / 5
Always confirm torque figures, fluids and capacities against the factory service manual for your VIN. See the disclaimer; some parts links are affiliate links.