Front Ball Joint: Installation

1. Install the ball joint assembly to the housing assembly - front axle.
   CAUTION:

   • Do not apply grease to the tapered portion of ball stud.
   • Before tightening, make sure the bottom surface of the housing assembly - front axle and the stepped section of ball joint are in contact.
   Fig 1: Ball Joint Assembly Components

   Courtesy of SUBARU OF AMERICA, INC.

   Tightening torque: 

   50 N.m (5.10 kgf-m, 36.9 ft-lb) 

2. Install the ball joint assembly to the front arm assembly.
   1. Connect the ball joint assembly to the front arm assembly.

      Tightening torque: 

      39 N.m (3.98 kgf-m, 28.8 ft-lb) 

   2. Retighten the castle nut further up to 60° until the hole in the ball stud is aligned with a slot in castle nut.
   3. Insert a new cotter pin and bend it around the castle nut.
3. Install the clamp - stabilizer bushing.
   CAUTION: Install the clamp - stabilizer bushing with the arrow mark facing the front of the vehicle.
   Fig 2: Installing Clamp - Stabilizer Bushing With Arrow Mark Facing Front Of Vehicle

   Courtesy of SUBARU OF AMERICA, INC.

   Tightening torque: 

   25 N.m (2.55 kgf-m, 18.4 ft-lb) 

4. Install the under cover - front.
   CAUTION: Install so that the front end of the under cover (b) comes inside the bumper face - front (a), and the front end of the mud guard (c) comes outside the bumper face - front (a).
   Fig 3: Cautions For Installing Front End Of Under Cover Properly

   Courtesy of SUBARU OF AMERICA, INC.

   Tightening torque: 

   18 N.m (1.84 kgf-m, 13.3 ft-lb) 

5. Install the front wheels.

Tightening torque: 

Except for C4 model: 120 N.m (12.24 kgf-m, 88.5 ft-lb) 

C4 model: 100 N.m (10.20 kgf-m, 73.8 ft-lb)