Heavy Truck Kit

• Format: FBX (specify based on your export)
• Polygon count: [e.g., ~200,000 tris — fill in actual count]
• Texture resolution: 4K
• UV mapped: Yes, non-overlapping
• Rigged parts: Steering wheel, wheels (front/rear), doors, mirrors, suspension joints

Truck Controller : Model & Manual Gearbox Physics

Drive a heavy truck the way it should feel. A complete, ready-to-use truck package: a realistic 3D truck model together with a full driving system that has a manual gearbox, clutch, brakes, audio system, and a working dashboard. Drop the prefab into your scene, press Play and drive.

What’s included

• Realistic truck model with separate wheels, steering wheel, dashboard needles, wipers and lights.
• Truck Controller script for WheelCollider-based physics, tuned for a heavy vehicle.
• Ready-to-use prefab with everything attached and assigned.
• Demo scene to test the truck immediately.
• Full documentation and a controls reference image.

Key features

Realistic driving physics

• Front-wheel steering with smooth steering input
• Rear-wheel drive with 2 or 4 driven rear wheels (extra rear wheel pair is optional)
• Torque shared across all rear wheels, with an engine RPM limiter
• Brake system with a nose-dive effect (suspension changes while braking)
• Adjustable centre of mass for stability

Manual gearbox with clutch

• 5 forward gears and reverse, with a customizable ratio and maximum speed for each gear
• Clutch input, gear selection and neutral
• Reverse / Drive / Neutral selector with UI buttons that change colour
• Engine start sequence (press E)

Realistic audio system

• Engine start, idle and driving loops that cross-fade smoothly
• Engine pitch that follows the RPM
• Brake , horn with fade-out, reverse beeper and indicator tick 

Lights, dashboard and details

• Left and right turn signals with blinking emission
• Blinking parking light
• Working wipers
• Speedometer and RPM needles with smoothing, plus speed and gear display
• Pause menu and controls menu hooks for your UI

Controls

• Keyboard: W / A / D, Space for brake, Shift for clutch, Shift + 1-5 for gears
• Steering wheel and pedal support through the Input Manager (throttle, steering, brake, clutch axes and wheel buttons)
• Camera pivot rotation

Easy to customize

• Clean, commented code in the HunterCraft_Creations namespace

Technical details

• Unity version: Unity 6 or newer
• Input: Unity Input Manager (old input system or Both)
• Requires: TextMeshPro, Unity UI
• Render pipeline: URP
• Scripts: truck_, Switches, indicators
• Wheel colliders: 4 minimum, 6 supported