Geo Tracker Solid Axle Swap (SAS) Using a Samurai Front Axle
This guide documents a front solid axle swap (SAS) performed on a Geo Tracker using a Suzuki Samurai front axle. This conversion replaces the factory independent front suspension (IFS) and resulted in nearly 5-inches of front suspension lift, along with significantly improved strength and off-road capability.
This setup is ideal for trail rigs, rock crawlers, and serious off-road builds where durability and articulation are more important than factory ride quality.
Overview of the Solid Axle Swap
The factory IFS system is completely removed, including the crossmember, and replaced with leaf-sprung
Samurai components mounted spring-under-axle (SPUA). Gear ratios must be matched to the Tracker drivetrain
for proper operation.
Parts Needed for a Geo Tracker SAS
- Suzuki Samurai front axle with Tracker-compatible gears installed (5.13 gears used in this build)
- Suzuki Samurai leaf springs installed SPUA
- Front shackles (stock or custom fabricated)
- Samurai tie rod and drag link
- Wheel spacers or offset front wheels (wheel spacers used here)
- (2) leaf spring hangers for the fixed end of the springs
- (2) shackle-end leaf spring bushing tubes (5/8″ x 3/4″ rod ends used instead in this build)
Geo Tracker Solid Axle Swap Process
- Remove all factory IFS components, including the front crossmember.
- Cut off the frame “horn” at the front arch and plate the area.
- Box and plate the frame where the new leaf spring hangers will be welded.
- Position the Samurai axle and leaf spring assembly under the front of the vehicle.
- Bolt the factory Tracker front driveshaft to the Samurai axle, leaving approximately 1/2 inch of compression.
- Center the axle within the wheel wells.
- Weld the fixed spring hangers to the newly boxed section of the frame.
- Install the front frame-side shackle mount. Frame rails can be extended roughly 2-inches using 2×4 box tubing. In this build, rod ends were used due to existing bumper clearance.
- Cut and sleeve the Samurai drag link to achieve the proper steering length.
- Fabricate shock mounts and install front shocks. Chevy S10 rear shocks were used with 9 inches of travel (4 inches up-travel, 5 inches down-travel).
- Install wheel spacers and front wheels.
Geo Tracker Solid Axle Swap Photos
The following images show various stages of the swap.
They do not necessarily reflect the exact order of the steps listed above.
