technical data -

To be written...

maintenance -

Lubricate pivot and track rod ball joints every 1,000 miles.

problems -

The lower seat of the track rod balljoint may rust and stick in the housing, preventing the spring pressing it onto the ball. This leads to a loose joint and thus backlash in the steering. The joint can be disassembled (see diagrams below) for cleaning. If, when refitting, the two seats meet, the joint is worn and must be repaired or replaced. Remember to apply copious quantities of grease when re-assembling.

removal -

To be written...

other notes -

To be written...

diagrams -

All images are scanned from originals, wherever possible, at 100dpi (unless otherwise noted) and must be scaled when printed to preserve the original size (eg. scale up by 3 times for a 300dpi printer).

Note, however, that due to slight scaling inaccuracies during both the scanning and inevitably the printing, these images should be taken as an approximation for reference only.
In addition, drawings, measurements and notes of materials used are intended as a guide and aid to the restorer, and not necessarily a definitive, or even guaranteed correct, reference.


The ball, cup, ball pin and ball pin seal for the steering idler arm ball-joint.

The bush for the center pivot of the steering idler arm. Although the parts catalog suggests there should be two, only single bushes are found in practice.

Steering track rod end (body forging #S298463 B.S.A) showing how the balljoint can be completely dismantled for overhaul.
The taper is probably 1 in 8 but has not been checked.

An alternative track rod end dust cover (the hemisperical washer which fits over the balljoint stud in the track rod end to exclude dirt) is the Land Rover part number 556633 / XA3127A3. This part has a slightly smaller center hole, but allows full articulation of the joint.
This part is only suitable for the genuine original Lanchester track rod end. These can be completely dismantled by removing the circlip and have replaceable seats inside the housing around the ball. The non-dismantleable type of balljoint is a later replacement and uses a different type of sealing method .

Another sketch of the ball cup, showing measurements relative to the track rod end.

None yet.