Triangle Truck Parts
Planning a Desert Truck Build
← All truck & off-road resources
BUILD PLANNING
Work through the systems, dependencies, and questions to answer before ordering parts.
A useful build plan describes the whole truck: the terrain, operating conditions, passengers, load, and service needs. Start with a written brief, then review the effect of each modification across the systems it touches.
1. Write a one-page build brief.
- Vehicle: year, make, model, engine, transmission, drivetrain, and existing swaps.
- Use: recreational trails, desert travel, route scouting, or a specific competition class.
- Operating conditions: terrain, heat, trip duration, passengers, cargo, and fuel availability.
- Constraints: budget, downtime, storage, transport, and maintenance access.
- Success: the specific problems you want the build to solve.
For a competition project, confirm the current class and event requirements with the organizer before selecting the chassis, occupant protection, fuel system, and other regulated equipment.
2. Establish a reliable baseline.
Record existing wear, leaks, warning lights, cooling behavior, steering condition, and braking performance. Have structural concerns and loose or damaged components evaluated before adding load or changing performance. Photograph identifying labels and retain the service records you will need later.
3. Plan the systems together.
| System | Questions to resolve | Related checks |
|---|---|---|
| Tires & wheels | What size, load rating, wheel dimensions, and spare arrangement suit the vehicle? | Clearance, steering travel, braking compatibility, and load. |
| Suspension & steering | What terrain and load must the system handle? | Travel limits, alignment, hose and wiring clearance, joint limits, and driveline geometry. |
| Brakes & hubs | What exact components and mounting arrangement are installed? | Wheel clearance, hoses, bearings, and any sensor interfaces. |
| Driveline | What axles, joints, shafts, and ratios are present? | Operating angles, joint type, shaft length, and manufacturer limits across the intended suspension travel. |
| Engine & cooling | What duty cycle and ambient conditions must it support? | Cooling capacity, airflow, filtration, fluid requirements, and service access. |
| Electrical | What accessories will operate together? | Supply capacity, suitable circuit protection, routing, grounding, and weather exposure. |
Use a qualified builder for structural changes and suspension design. On a modified truck, validate interfaces and clearances through the intended range of movement rather than judging fit from the parked vehicle alone.
4. Budget the complete job.
For every modification, list the main part, supporting hardware, consumables, labor, setup, and verification work. Add the ongoing costs of maintenance, tires, spares, fuel, and transport. Keep a separate allowance for problems uncovered during disassembly.
System / current component / proposed change / dependent changes / part number / fitment confirmed by / installed cost / inspection or test / service interval.
Complete one coherent stage before ordering the next. Examples include restoring the braking system, completing a compatible suspension package, or adding an appropriately designed accessory circuit. Document why each stage is needed.
5. Verify, then keep a record.
- Have installed components inspected and set up to the applicable specifications.
- Confirm clearances, fasteners, fluid levels, line routing, and normal controls.
- Plan controlled checks with the builder or technician appropriate to the work completed.
- Inspect again after initial use and follow the component manufacturer’s recheck schedule.
- Save part numbers, donor details, settings, and service instructions with the vehicle.
For your parts request, include the original vehicle details and identify anything that has been changed. A swapped axle or brake system can require components that differ from the original catalog application.
Technical references & further reading
- SCORE International: class overview (2024; obtain current rules before a race build)
- Spicer: operating-angle guidance and calculator
Use the service information for your exact vehicle and installed components for specifications and repair procedures.