lexus ls 400-r1 without ride light instructions

8/14/2019 Lexus LS 400-R1 Without Ride Light Instructions

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Installation Guide

When servicing any vehicle be sure to follow all safety procedures. First, make sure that

when lifting the vehicle that you are using the appropriate jack for the weight of the vehicle.

Make sure before going underneath any vehicle that it is properly supported with sturdy jack

stands and on level ground so that the vehicle doesn’t fall or slide off of the jack and onto you. As

with any automotive repair, make sure you have the appropriate tools to do the job so you don’t

damage any parts on the vehicle. There is a list of tools needed included in these instructions.

Safety glasses and mechanic gloves should also be worn for your protection.

Be sure to follow the instructions in the order that they are given. The instructions are in a

certain order for a reason and improper installation could lead to damage to your vehicle or the

parts. Keep in mind that if you damage the parts during installation you will be responsible for

the replacement parts.

Take precaution not to exceed the Gross Vehicle Weight Rating (GVWR), or the maximum

load recommended by the manufacturer. It is important that all vehicle's Owner Manuals

recommendations are followed for your own safety and to prevent damage to the vehicle.

Once you are ready to disable the ride light, you will need to disconnect the ground battery

cable (-) to prevent electrical shock/malfunction.

If you have any questions or concerns about the install of your conversion kit, please give your

salesperson a call at 866-597-2397.



Quick Start GuideLexus LS 400 Rear Kit 1990 - 1999

LS400-R

• (2) Fully assembled coil over strutsParts Included in This Kit

• Metric Socket SetTools Needed For Installation

• Floor Jack • Jack Stands• Metric Wrenches• Screw Drivers (Phillips and Flat Head)• Wire Cutter/Stripper/Crimping Tool• Level Work Surface• Spring Compressor (If Applicable)• Allen Wrenches

1. Read general service precautions2. Support the vehicle3. Remove air suspension parts4. Install conversion5. Disable the ride control light



Strutmasters LLC Lexus LS 400 1990 - 1999 12/02/09

Rear Kit Installation Instructions

Rear Removal Instructions1. Remove the rear wheel. Torque: 103 Nm (76 ft. lbs.)2. Remove the rear seat cushion, rear seat back and package tray trim. Refer to body and

frame.

3.

Remove the rear drive shaft.4. Disconnect the stabilizer bar link from the stabilizer bar. Torque: 65 Nm (48 ft. lbs.)

5. Remove the rear brake caliper.a. Remove the 2 bolts and brake caliper. Torque: 104 Nm (77 ft. lbs.)b. Support the brake caliper securely.

6. Remove ABS speed sensor. Remove the bolt and ABS speed sensor. NOTICE: Do notdisconnect the RH pad wear indicator connector. Torque: 7.8 Nm (69 inch lbs.)

7. Disconnect height control sensor link from No. 1 lower suspension arm.a. Place the match marks on the link and bracket.b. Remove the nut and disconnect the height control sensor link. Torque: 5.0 Nm (48 inch

lbs.)8. Remove the shock absorber and coil spring.

a. Loosen the bolt and remove the nut on the lower side of the shock absorber.HINT: Do not remove the bolt.

Torque: 137 Nm (101 ft. lbs.)

b. Support the rear axle carrier with a jack.c. Remove the 3 nuts and shock absorber cap. Torque: 25 nm (18 ft. lbs.)d. Loosen the suspension support center nut.

NOTICE: Do not remove the nut.Installation Hint: Torque to 27 Nm (20 ft. lbs.)

e. Remove the 3 nuts.Installation Hint: Torque to 64 Nm (47 ft. lbs.)

f. Lower the rear axle carrier and remove the bolt on the lower side of the shockabsorber.

g. Remove the Air strut

Note: The rear springs may settle some during the first couple of weeks of use. You may have to adjust the

front height sensors to match the level of your new rear springs.The rear springs can sit a little low if your rear shocks are bad. Test the rear shocks by pushing down on therear of the car. If the rear bounces then you need to replace the shocks also. (Strutmasters carriesreplacement shocks if this is encountered.)

When installation has been completed lower the vehicle off the lift. Recheck and tighten all nuts and boltswhile the vehicle in on the ground. Read instructions carefully before attempting installation. Please, haveinvoice before calling.



Rear Installation Instructions Read instructions carefully before attempting installation, if you have problems during the install thenfeel free to call our Technical Support Line. Please before calling for technical help, have your invoice

handy.1. Install suspension support and temporarily tighten new nut, then rotate the suspension

support until the rod and one suspension support bolt line up with the lower bushing. (SeeFigure #1)

Fig. 1

2. Install the shock absorber in the vehicle with the three mounting nuts and torque tospecifications. (See Figure #2)

Fig. 2

3. Torque the suspension support to specification, then install shock absorber cap and threenuts.



4. Connect shock absorber to rear axle carrier and temporarily install nut and bolt.

5. Install the brake caliper and torque bolts to specifications.

6. Connect both the stabilizer bar links and torque to specifications.

7. Install the rear driveshaft.

8. Install wheel and tire assembly, then lower the vehicle and bounce up and down severaltimes to stabilize.

9. Raise and support the vehicle's weight that's still on the suspension, then remove wheel andtire assembly.

10. Torque the lower shock bolt to specifications.

11. Install the wheel and tire assembly and torque to specifications, then lower the vehicle.

12. Install the package tray trim, right and left roof side inner garnishes, right and left rearscuff plates, rear seat back and rear seat cushion. (See Figure #3)

Fig. 3

13. Check rear wheel alignment.

lexus ls 400-r1 without ride light instructions

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