Truckful truck parts determine how much cargo your pickup can haul, how well it grips muddy inclines, and whether you can survive hostile encounters in the Old Forest. Developed by MythicOwl and co-published with Pocketpair Publishing, the physics-based delivery adventure requires players to systematically swap mechanical components and install active gadgets to fulfill delivery orders across Deep Stone Valley. Upgrades are split between standard coin-based mechanical tuning at Teresa's workshop and scrap-fueled survival modifications forged at Red's Scrapyard.
Mechanical Truck Parts and Vehicle Parameters
Upgrading your truck's core mechanical parts changes vehicle performance across six primary parameters: engine power, steering handling, traction, suspension stiffness, braking force, and chassis weight. Installing heavier components or larger flatbeds increases weight, which requires matching engine and tire upgrades to prevent the truck from bogging down on steep hill climbs or loose dirt.
| Part Category | Observed Parts in Game | Primary In-Game Effect | Unlock & Purchase Method |
|---|---|---|---|
| Engine | Base Engine, 75 HP Engine, 90 HP Engine | Increases horsepower for uphill climbs and heavy loads | Purchased with coins at Teresa's workshop |
| Steering | Narrow, Very Narrow, Normal, Wider Steering | Improves vehicle handling and turning responsiveness | Teresa's workshop |
| Suspension | Old Tech / Rusty, Stiff, Derusted Suspension | Absorbs rough bumps and stabilizes uneven loads | Teresa's workshop; advanced versions via Scrap |
| Tires | Worn, Cheap, Normal, Refurb, Off-Road Tires | Increases road traction and reduces slippage in mud | Teresa's workshop |
| Brakes | Weak, Cheap, Normal, Medium Brakes | Shortens stopping distance to protect fragile cargo | Teresa's workshop |
| Chassis / Body | Rusty Steel, Steel Body, Alloy Superlight | Adjusts vehicle durability and total curb weight | Teresa's workshop (coins) and Scrapyard |
| Horns | Base Horn, Tootey, Deafeator 2000, Howler | Scatters livestock (sheep) and scares off wild boars | Story progression at Teresa's; advanced audio upgrades |
Upgrades directly alter how the truck interacts with the environment. For example, moving from worn tires to cheap or refurb tires reduces the severe wheel slippage found on the muddy paths near Northern Deepstone and the western marshes. Similarly, running heavy hauls like toxic chemical barrels or construction gear causes stock 45 HP engines to stall on steep mountain switchbacks leading to the Paraboree Hotel, making the 75 HP or 90 HP engine upgrades critical for delivery deadlines.
Cargo Bed Sizes and Enclosures
The pickup bed is the heart of every delivery run. Cargo in Truckful uses dynamic physics, meaning packages slide, bounce, tip over, and fall out if not loaded correctly or secured behind adequate barriers. When an order exceeds your default capacity, the packing screen displays a capacity warning, requiring a larger cargo bed upgrade.
Available cargo bed modifications include:
- Painted GT18+ and Tarp 18: Medium-capacity options that add side paneling or tarp coverings to keep smaller stacked parcels from sliding over the edge.
- Chimney 12+: A specialized enclosure featuring raised side rails designed to keep upright, awkward objects confined during sudden turns.
- Narrow Basket 18+: An elongated carrier that assists with narrow, high-density loads such as barrels and mechanical canisters.
- Cargo Bed 24+ and Flatbed XL 30+: Heavy-duty beds necessary for transporting multiple bulk objects simultaneously, such as concrete mixers, construction workers, and multiple crates.
Selecting the right flatbed involves balancing capacity against vehicle balance. Larger cargo beds like the Flatbed XL 30+ shift the center of mass toward the rear. Without upgraded suspension, the rear of the truck dips low to the ground, which can cause the tail to scrape against rocks, high ledges, or rail tracks when reversing.
Special Gadgets and Survival Equipment
Beyond standard mechanical replacements, your truck can be outfitted with specialized equipment that grants active abilities or passive protections against environmental hazards and Valley entities.
- Navigation (GPS): Unlocked early from Teresa, this part displays the player's exact coordinates as a red dot on the world journal map and places an orientation arrow pointing toward active delivery objectives.
- Sticky Cargo: An activated ability that temporarily glues all loaded crates, barrels, and passengers to the truck bed. If a box has already tipped over the side, activating Sticky Cargo pulls loose items back onto the flatbed.
- Winch: Installed by Zed at the Scrapyard. The winch allows drivers to pull their vehicle out of deep mud bogs, climb impassable slopes, and navigate waterlogged riverbeds.
- Nitro / Boost: Provides an instantaneous surge of forward acceleration. It is vital for escaping sudden hazards, clearing collapsed road gaps, or beating tight Express Delivery time limits.
- Metal Detector: An auxiliary scanner used to locate buried military relics, hidden scrap piles, and dangerous landmines concealed beneath dirt paths.
- Camouflage: A passive modification that reduces the encounter rate of roaming forest threats, including the hostile phantom truck.
- Runes: A passive mystical upgrade that permanently slows down pursuing entities without requiring manual activation.
- Shockwave / Knockdown: Emits a kinetic pulse around the truck that temporarily stuns aggressive creatures blocking narrow roads.
Workshop Locations and Upgrade Currencies
Upgrading your truck requires managing two distinct currencies: cash coins and salvaged scrap. Each currency corresponds to a specific workshop hub in the Valley.
Teresa Screwmith's Garage
Located at the crossroads south of Willow Avenue, Teresa's workshop handles fundamental automotive maintenance. Teresa accepts standard coins earned from completing primary delivery contracts and optional medal objectives (such as Clocked Mileage and Express Delivery). Her shop stocks:
- Engine tune-ups (75 HP upgrade).
- Basic steering, suspension, and braking replacements.
- Highway and light off-road tires.
- Cosmetic paint colors (including classic red, green, and pink).
- Standard cargo flatbed conversions (GT18+, Chimney 12+).
Red and Zed's Scrapyard (The Rustmire)
Situated near the Eastern Railway section, the Scrapyard is operated by Old Rusty Red and his son Zed. Standard coins are not used here. Instead, Zed trades advanced equipment and heavy-duty modifications exclusively for Scrap.
Scrap is salvaged across the countryside from abandoned machinery, collapsed tunnels, and discarded military hardware. Players deposit raw scrap into the large automated sorting machine outside the workshop. Zed uses this recycled metal to install the Winch, Nitro Boosters, Metal Detectors, and reinforced structural frames.
Frequently Asked Questions (FAQ)
Where do I get the Winch to cross the deep mud?
The Winch is provided by Zed at the Scrapyard when you take on the emergency run to the clinic for Old Rusty Red. It requires visiting the Scrapyard workshop to complete the installation before tackling the muddy road.
How do I stop packages and passengers from falling out of the truck bed?
You can prevent cargo loss by packing heavy items flat on the bottom during the pre-trip simulation, upgrading to enclosed beds like the Chimney 12+ or Flatbed XL, and triggering the Sticky Cargo ability when navigating sharp turns, rough cobblestone, or steep inclines.
What do the horn upgrades do?
The stock horn startles small livestock like sheep out of the roadway. Upgraded horns, such as the Deafeator 2000 or the Howler, scatter flocks instantly and can scare off large aggressive wild boars that block narrow forest paths.
Why is my truck sliding on dirt even after buying new tires?
Worn or standard highway tires provide minimal traction on Deep Stone Valley's unpaved roads and marshlands. You must upgrade to dedicated off-road tires and install stiffer suspension to maintain wheel grip on dirt inclines and damp switchbacks.
