Universal Spares — All Vehicles
These spares belong in any trail rig. The early Bronco additions below are layered on top of this baseline.
- Engine oil — 2 extra quarts, correct viscosity for your engine
- Gear oil — 1 quart, correct grade for your axles and transfer case
- Brake fluid — 1 small bottle DOT 3
- Power steering fluid — 1 quart (if equipped)
- Coolant 50/50 — 1 gallon
- Fuse assortment — blade 5A–40A, full set
- Spare belts — serpentine or V-belt matched to your engine
- Spare bulbs — headlight, brake, turn
- Battery terminals — top-post pair
- U-bolts — matched to your leaf spring pack
- Cotter pins — assortment
- Grade-8 hardware — 3/8", 1/2" bolts and nuts, 6-pack each
- Fuel filter — inline or canister matched to your setup
- Hose clamps — 4-pack assortment
- Radiator hose repair tape
- Spare section of fuel line — 2 feet, rubber, 5/16" ID
Early Bronco Specific Spares
The early Bronco's specific failure modes are concentrated: ignition, fuel delivery, and driveline wear. Address these three areas in your parts kit and you've covered the real risk.
Fluids — Early Bronco Specific
302/351W: 10W-30 conventional — not thin synthetic, as the rope rear main seal on older engines does not respond well to it. Dana 44 diffs front and rear: 80W-90 GL-5. Dana 20 transfer case: 80W-90 GL-5.
Cooling
The 302 runs hot under load. Carry both upper and lower radiator hoses matched to your year and engine, plus 1 gallon of 50/50 coolant. Hose clamps on trucks this age are often original and corroded — carry 4 correctly sized hose clamps along with the hoses.
The points ignition is the single largest field failure risk. If you haven't converted to Pertronix, do it before you go — and carry backup points regardless. The carb rebuild kit and mechanical fuel pump are the second and third priority. Solve those three and you've covered the early Bronco's real trail risks.