Toyota Landcruiser FJ40 Project

Tom's Ultimate Rock Crawler!
PAGE 1

The stock FJ40 frame was stripped and sandblasted. The rear suspension was removed. The Spring mounts were relocated to raise the frame by 1-1/4" and the axle centre was set rearward by 2-1/2". The springs and shocks were replaced with Old Man Emu products.
The stock rear shock crossmember was removed and replaced with a 2x2x.250wall tube unit with adjustable upper shock mounts. The new crossmember was relocated to correspond with the rear axle location. The rear section of the frame was full boxed with 3/16 plate at the same time.
The rear bumper was removed and replaced with 4x4 tubing. The new rear bumper encloses the rear taillamps and also is used for the rear body mounts. The ends of the tubes were closed to keep the elements from corroding the taillamp assemblies. With the relocation of the rear axle and the tight fitting of the rear bumper. A hitch receiver tube was also incorporated into the rear bumper. The Landcruiser will have a great departure angle!
The stock steering gear has been replaced with a GM saginaw power steering unit. This eliminated the stock box and belcrank assembly.

The front frame horns are stripped clean. The unnecessary holes are filled and since the required holes will be inaccessable because of the new steering box, blind nuts are welded prior to affixing the box mount plate. for blind nuts, we used 1/2" NC HEAVY nuts. The two nuts on the top of the rails are welded into the original tow-hook mounting holes. The two on the side of the rails are welding into new holes and will be used to attach the new front winch mount/nurf bar assembly (custom fabricated by Lo-Boy's).

The front springs have been reversed, with the shackles at the rear. (Old Man Emu stuff) This greatly enhances the approach angle. The front axle centreline has been relocated forward by 2-1/2" to further this advantage. The front spring mounts (formerly rear mounts) have been dropped from the frame for a total lift of 1-1/2". Our original intention was for 1", but interference with the steering box warranted the change.

The two top Steering Box mounting bolts extend through the upper side of the frame rail. To ensure the unit is solid and the frame won't collapse, it is necessary to install crush bushings between the outer frame rail and the steering box mounting plate. The front lower bolt extends through the spring mount extension. We used .250 wall tubing and the mount hole is at the bottom of the tube. This eliminated the need of a crush bushing in this location.
This is a top view of the assembly. Please note the stand-off bushings between teh box and the mounting plate. These vary in length to ensure the square mounting of the Saginaw box. The box is mounted so that the front of the unit is virtually in line with the front of the frame horn. The box is mounted at approximately 6 degrees off level and the input shaft of the box extends through the FJ40 front cross member.
The front crossmember was cut and a 3" ID x..250 round tube was installed to reinstate the integrety of the crossmember. Before cutting anything from the crossmember, we welded temporary braces behind the crossmember to ensure it would not distort.
Viewing from behind, you can see that we left the lower section of the crossmember intact. It is hard to tell in the photos, but the tubing is cut on a 6 degree angle to precisely fit the crossmember.
We soon will have the body back on the frame. The rear wheelwells will be relocated and enlarged to accomodate the 37" tall tires, The rocker panels will be raised for clearance and skid plates incorporated to the bottom. The front fenders will be raised and the fronts "bobbed" to allow for maximum suspension and steering travel.