Advance Adapters

Since 1971, Advance Adapters has been a trusted leader in drivetrain conversion technology, designing and manufacturing premium engine adapters, transmission adapters, transfer case solutions, and drivetrain components for off-road enthusiasts, custom builders, and performance vehicle owners. Based in Paso Robles, California, Advance Adapters engineers and manufactures its products in the USA, providing innovative solutions that allow builders to successfully mate engines, transmissions, and transfer cases across a wide range of vehicle platforms. Known for legendary products like the Atlas Transfer Case, Advance Adapters has earned a reputation for quality craftsmanship, durability, and technical expertise in the 4WD and off-road industry. Whether you're completing an LS swap, transmission conversion, Jeep restoration, rock crawler build, or custom drivetrain project, Advance Adapters delivers the precision-engineered components and proven reliability needed to tackle the most demanding trails and adventures with confidence.