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The Toyota lower ball joint design on the 3rd Gen 4Runner is known to be a weak link. To explain the design in the simplest way, imagine your car trailer ball off your hitch facing the ground, and the tongue of your trailer hitch facing up. Every time you hit a bump on the road, the ball would be tugging itself out of the trailer hitch cup.
The ball joint design is best described this way, and with the way the lower control arm bolts to the spindle, forces are being applied in a direction that can contribute to premature parts failure.
When your suspension droops with an aftermarket extended shock, long travel system or spacer kit the lower ball joint and outer tie rod are placed at a near binding angle and stressed under load. Over time this added angle causes additional wear on the lower ball and socket configuration. These pressed-in assembled parts are prone to separate and cause catastrophic failure to the steering and suspension system.
For the last 2 years our R&D team dedicated design time and logged 35,000 test miles to launch the first fully bolt-on billet machined 1" lower uniball conversion. We drove on these parts for 18 months to prove the parts were ready to send to production.
This R&D process was a true test of patience, refining each prototype to include additional features and more benefits. We now offer the most durable lower uniball conversion with added safety and component strength in mind. Constant innovation. Our minds are always racing!
CNC machined AISI 1018 billet steel construction.
Lower uniball conversion is designed to upgrade the factory ball joint with added strength and durability.
Built in locating pins and registering center ring lock into the spindle and lessen the shear load on the mounting hardware.
Designed to reduce bump steer and improve steering geometry.
100% bolt on and fully rebuildable.
Lower control arm tapered adapters are included. Bolts to stock Toyota LCA's or TC long travel kits.
Re-uses factory outer tie rod ends.
Black Cerakote coating to maximize corrosion resistance.
Mounting hardware is included.
Not intended to be installed with other manufacturers' aftermarket suspension systems.