Lower Ball Joint Play (GS300, GS400 & LS400)
Raise and support vehicle and remove wheel assembly. Using a dial indicator with a magnetic base, place the base on the strut bar and position the spindle of the dial indicator parallel to the knuckle arm. Measure play of lower ball joint when axle is pushed up. Maximum play should be 0.012" (.30 mm) for LS400, or .035" (.90 mm) for GS3300 and GS400. If not to specification, replace ball joint.
Lower & Upper Ball Joint Rotational Check
Remove lower ball joint. On SC300 and SC400 models, lower control arm must be removed. See LOWER CONTROL ARM & BALL JOINT under REMOVAL & INSTALLATION. Clamp ball joint in vise. Move stud back and forth 5 times through its entire range. Install nut. Using INCH-lb. torque wrench, rotate stud at rate of 2-4 seconds per turn. Measure rotating torque on fifth turn. See LOWER BALL JOINT ROTATIONAL CHECK table.
| Model | INCH Lbs. (N.m) |
|---|---|
| ES300 & RX300 | 8.7-30 (1-3.5) |
| GS300 & GS400 | .9-26 (.1-3.0) |
| LS400 | 9-30 (1-2.5) |
| SC300 & SC400 | 9-31 (1.0-3.5) |
LOWER BALL JOINT ROTATIONAL CHECK
HUB BEARING & AXLE HUB
Note. On vehicles equipped with air suspension, ensure ignition switch is in OFF position BEFORE raising vehicle. If ignition is on when vehicle is raised, vehicle automatic height adjustment will operate, resulting in possible damage to vehicle.
All Models
- Raise and support vehicle. Remove wheels and tires. Remove caliper retaining bolts. Remove caliper from steering knuckle. Suspend caliper with wire. Reference mark disc and hub for reassembly. Remove brake disc. Measure axle bearing axial play with dial indicator. Maximum bearing play should be .002" (.05 mm). If bearing play exceeds specification replace bearing. See «HUB BEARING»(ref-4637-S39479769742000071100000) under REMOVAL & INSTALLATION.
- Measure axle hub runout. Hub runout should not exceed .002" (.05 mm). If axle play is excessive, replace axle bearing. If hub runout is excessive, replace hub. See «HUB & KNUCKLE ASSEMBLY»(ref-4637-S26287842702000071100000) under REMOVAL & INSTALLATION.
COIL SPRING
See STRUT ASSEMBLY .
LOWER CONTROL ARM & BALL JOINT
| CAUTION | On vehicles equipped with air suspension, ensure ignition switch is in OFF position before raising vehicle. If ignition is on when vehicle is raised, vehicle automatic height adjustment will operate, resulting in possible damage to vehicle. |
STABILIZER BAR
| CAUTION | On vehicles equipped with air suspension, ensure ignition switch is in OFF position before raising vehicle. If ignition is on when vehicle is raised, vehicle automatic height adjustment will operate, resulting in possible damage to vehicle. |
UPPER CONTROL ARM & BALL JOINT
| CAUTION | On LS400 models equipped with air suspension, ensure ignition switch is in OFF position before raising vehicle. If ignition is on when vehicle is raised, vehicle automatic height adjustment will operate, resulting in possible damage to vehicle. |
HUB BEARING
Remove hub and knuckle assembly from vehicle. See HUB & KNUCKLE ASSEMBLY . Remove oil seal and bearing retainer snap ring from steering knuckle. Use a puller to remove hub bearing from steering knuckle. Use a press to install new bearing. Reverse removal procedures to complete installation.
ES300 & RX300
| Application | Ft. Lbs. (N.m) | |
|---|---|---|
| Axle Shaft Nut | 217 (294) | |
| Ball Joint-To-Lower Arm Nut | 94 (127) | |
| Ball Joint-To-Steering Knuckle | 91 (123) | |
| Caliper Bolt | 79 (107) | |
| Center Strut Nut | ||
| Without Electronic Suspension | 36 (49) | |
| With Electronic Suspension | 26 (36) | |
| Lower Arm Pivot Bolt | 152 (206) | |
| Shock Absorber Cap Nut | 9 (14) | |
| Stabilizer Bar Bushing Retainer Bolt | 14 (19) | |
| Stabilizer Bar Link Nut | 29 (39) | |
| Steering Gear Mounting Bolt | 134 (181) | |
| Steering Knuckle-To-Strut Bolt | 156 (211) | |
| Upper Strut Mounting Nut | 59 (80) | |
| Tie Rod End Lock Nuts | 54 (74) | |
| Tie Rod End-To-Steering Knuckle Nut | 36 (49) | |
| Wheel Lug Nut | 76 (103) | |
| INCH Lbs. (N.m) | ||
| ABS Wheel Speed Sensor Bolt | 69 (7.8) | |
| Dust Cover | 74 (8.3) | |
TORQUE SPECIFICATION (ES300 & RX300)
GS300 & GS400
| Application | Ft. Lbs. (N.m) |
|---|---|
| Caliper Retaining Bolt | 87 (118) |
| Camber Adjuster Cam Nut | 36 (49) |
| Caster Adjuster Cam Nut | 173 (235) |
| Center Strut Piston Nut | 20 (27) |
| Hub Nut | 147 (199) |
| Lower Ball Joint-To-Control Arm Nut | 119 (162) |
| Lower Ball Joint-To-Knuckle Bolt | 83 (113) |
| Lower Strut Mounting Bolt/Nut | 116 (157) |
| Stabilizer Bar Bracket Bolt | 41 (55) |
| Stabilizer Bar Link-To-Control Arm Nut | 83 (113) |
| Stablilizer Bar-To-Link Bolt/Nut | 21 (28) |
| Strut Bracket-To-Lower Control Arm Bolt | 43 (58) |
| Strut Retaining Nuts | 41 (56) |
| Tie Rod End-To-Knuckle Nut | 48 (65) |
| Upper Ball Joint Nut | 64 (87) |
| Upper Control Arm Retaining Bolts | 39 (53) |
| Wheel Lug Nut | 76 (103) |
| INCH Lbs. (N.m) | |
| ABS Wheel Speed Sensor Bolt | 69 (7.8) |
TORQUE SPECIFICATION (GS300 & GS400)
LS400
| Application | Ft. Lbs. (N.m) | |
|---|---|---|
| Axle Hub Nut | 147 (199) | |
| Caliper Retaining Bolt | 87 (118) | |
| Camber Adjuster Cam Nut | 185 (251) | |
| Center Strut Piston Nut | 20 (28) | |
| Lower Ball Joint Mounting Bolt | 113 (83) | |
| Lower Strut-To-Steering Knuckle Bolt | 106 (143) | |
| Stabilizer Bar Bracket Bolts | 21 (28) | |
| Stabilizer Link Nut | 70 (95) | |
| Steering Knuckle Bolt | 48 (65) | |
| Strut Bar (Front Nut) | 134 (181) | |
| Strut Bar-To-Lower Suspension Retaining Bolts/Nuts | 134 (181) | |
| Strut Bar-To-Lower Arm Nuts | 121 (164) | |
| Strut Bracket | ||
| Inner Bolt-To-Lower Arm Bolt | 43 (59) | |
| Outer Bolt-To-Lower Arm Bolt | 83 (113) | |
| Strut Retaining Nuts | 43 (59) | |
| Tie Rod End-To-Knuckle Nut | 43 (59) | |
| Upper Ball Joint Nut | 48 (65) | |
| Upper Control Arm Retaining Bolts | 83 (113) | |
| Wheel Lug Nut | 76 (103) | |
| INCH Lbs. (N.m) | ||
| ABS Wheel Speed Sensor Bolt | 69 (7.8) | |
TORQUE SPECIFICATIONS (LS400)
SC300 & SC400
| Application | Ft. Lbs. (N.m) |
|---|---|
| Axle Hub Lock Nut | 147 (199) |
| Caliper Mounting Bolt | 87 (118) |
| Camber Adjuster Cam Bolt | 166 (226) |
| Stabilizer Bar Bracket Bolt | 13 (18) |
| Stabilizer Link Nut | 54 (74) |
| Steering Knuckle-To-Lower Arm Bolt | 92 (125) |
| Steering Knuckle-To-Upper Arm Bolt | 76 (103) |
| Strut-To-Lower Arm Bolt | 105 (143) |
| Suspension Support Plate-To-Body Nut | 26 (35) |
| Tie Rod End-To-Knuckle Nut | 48 (65) |
| Upper Arm Pivot Bolt | 121 (164) |
| Wheel Lug Nut | 76 (103) |
| INCH Lbs. (N.m) | |
| ABS Wheel Speed Sensor Bolt | 69 (7.8) |
TORQUE SPECIFICATIONS (SC300 & SC400)