Symptoms
Clunk over bumps, wandering on the highway, uneven front tyre wear, torn ball-joint boots.
The fix, step by step
- Most owners replace the whole arm, with its bushings and ball joint, rather than pressing in new bushings.
- Support the truck, separate the ball joint, remove the inner mounting bolts and swap the arm.
- Lucky8 warns that the original bolts often rust into the arm and frame and have to be cut out, so buy the hardware kit.
- Finish with an alignment.
Tools & part numbers
- Sockets, breaker bar, ball-joint separator, reciprocating saw for seized bolts
- arm kit with hardware
Where to buy the parts
LR4 lower control arm searchRovers North ↗
Hunting a used or discontinued part? Search eBay Motors for Land Rover LR4 / Discovery 4 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.