Trail-Gear is proud to release a complete knuckle swap kit for the FJ40 front axle. Included in the kit is everything needed to install Trail-Gear’s 6 shooter knuckles, 30-Spline Birfields, Highsteer, and Disc Brakes. In order to support all applications drag link tubing and weld in bungs are included so that the customer can build a custom drag link that is best suited to their lift and steering box combination.

This kit comes with all hardware needed and will not leave you having to run to the store in order to get the vehicle back on the road again. Trail-Gear also gives the customers a variety of options to choose from (see Specifications).

Please Note:

  • Kit contents may differ slightly from product images depending on options selected.
  • Welding is required. We recommend that all welding be carried out by a certified welder.
  • Builders must source a steering box compatible with FJ40/45 high steer.



Warning! The axle seals included in this kit WILL NOT work on pre-1968 axles!

Additional information

Weight 220 lbs
Dimensions 48 × 36 × 18 in
Birfield Option

None, Long Spline, Regular Spline

Trunnion Option

Trunnion Bearing, Trunnion Bearing Eliminator

Hub Style

Locking Hub, Drive Flange, Studless Hub