Here is the full list of all 38 Gearshifters achievements.
Destroy the Sawdozer.
Destroy 50 enemy vehicles with melee attacks.
Destroy an enemy with a Powerslide attack.
Complete a South Uplands stage.
Defeat a faction.
Destroy the Combustor.
Destroy an Elite vehicle.
Equip a secondary weapon.
Complete a Frontier Province stage.
Equip your car with an upgrade.
Complete a Primary Sector stage.
All other trophies unlocked.
Complete a Shadow Quarter stage.
Complete an Ochre Wastes stage.
Complete a Dark Haven stage.
Complete a Sentry Ranges stage.
Complete a Northern Expanse stage.
Complete a Citadel stage.
Destroy an enemy with a Reverse attack.
Purchase 10 weapons.
Unlock 5 liveries.
Use 15 different boosts.
Purchase 10 charge abilities.
Acquire 20,000 currency.
Survive any stage without taking damage.
Destroy all Elite vehicles.
Destroy the Juggernaut.
Destroy the Wrecker.
Destroy the Thunderer.
Destroy the Suncopter.
Destroy the Marauder.
Destroy the Spearhunter.
Destroy the Emissary.
Unlock all driving skills.
Defeat all factions.
Deliver 10 different cargoes.
Purchase all upgrades.
Game completed (Any mode).