Heavy Truck Kit

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