CHE3U Tubular Rear Upper and Lower Control Arm Set Instruction Manual
- June 9, 2024
- CHE
Table of Contents
CHE3U Tubular Rear Upper and Lower Control Arm Set
Kit Contents
- 2ea. Rear Lower Control Arms
- 2ea. Rear Upper Control Arms
- 2ea. Assembly Lube Vial
- 1ea. Applicator Brush
WARNING: If you lack the necessary skill, tools, or equipment to safely complete this installation, have the component installed by a mechanic with the proper equipment and expertise.
Thoroughly read and understand these installation instructions before beginning the installation. If there is any doubt regarding the procedure, please contact CHE Performance prior to attempting installation
NOTE: Only remove one control arm at a time. Removing more than one control arm from the vehicle at the same time may cause damage to the vehicle and/or personal injury.
INSTALLATION
Step 1. Raise the Vehicle
WARNING: The electrical power to the air suspension system must be turned
off prior to hoisting, jacking or towing an air suspension vehicle. Failure to
do so can result in unexpected inflation or deflation of the air springs,
which can result in shifting of the vehicle during these operations. Turn the
air suspension service switch off
With the front wheels properly blocked; raise the rear end of the vehicle as
high as safely possible. Place jack stands on a solid area under the frame of
the car, not the rear end. Remove the wheels at this time.
Step 2. Raise Rear Axle
Using a floor jack under the center section of the rear end, raise the rear axle of the vehicle until it is near ride height. Do not raise the rear axle of the vehicle so high that the vehicle is no longer supported by the jackstands on the frame of the car.
Step 3. Support Rear Axle
- Place jack stands securely under the axle for support.
Step 4. Remove Lower Control Arm
Take caution that the control arm does not swing down causing vehicle damage
or bodily injury when the bolts are loosened.
REMOVE THE CONTROL ARM FROM ONE SIDE OF THE VEHICLE ONLY!
- A. Using an 18mm wrench or socket, remove the chassis side bolt from the lower control arm. Retain the bolt and flag nut for re-use with the new control arms.
- B. Using an 18mm wrench or socket for the bolt and a 21mm wrench or socket for the nut, remove the axle side control arm bolt. Retain the nut and bolt for re-use.
Step 5. Clean & inspect mounting points
Fully inspect all mounting points and remove any debris. Apply a light coating of the supplied synthetic grease to all surfaces that will be in contact with the bushings. At this time, also coat the outside of the bushings themselves with the same supplied grease
- 7a. Clean, inspect, and Lube mounting points
- 7b. Lubricate Bushing Faces
Step 6. Install Lower Control Arm
Install the new lower control arm on the vehicle.
Install the bolt and flag nut in the chassis side first, followed by the nut
and bolt in the axle side. Because the axle may have shifted slightly during
removal of the control arm, the axle may need to be repositioned. A jack
placed under the pinion flange of the rear axle may be used to properly align
the bolt holes.
Step 7. Torque Lower Control Arm Bolts
Unlike the factory bushings, the bushings in the new control arms are free to
rotate around the mounting bolt, allowing the bolts to be fully torqued
without the vehicle at ride height.
Torque the front and rear lower control arm mounting bolts to 111 lb-ft.
Step 8. Remove Upper Control Arm
Take caution that the control arm does not swing down or that the flag nut
does not rotate causing vehicle damage or bodily injury when the bolts are
loosened.
REMOVE THE CONTROL ARM FROM ONE SIDE OF THE VEHICLE ONLY!
- B. Using an 18mm wrench or socket, remove the chassis side bolt from the upper control arm. Retain the bolt and flag nut for re-use with the new control arms.
- C. Using a 15mm wrench or socket, remove the axle side bolt from the upper control arm. Retain the bolt and flag nut for re-use with the new control arms.
Step 9. Install Upper Control Arm
- A. Lubricate the bushing faces and mounting points of the upper control arm following instructions in step 5.
- B. Install the new upper control arm on the vehicle. Install the bolt and flag nut in the chassis side first (larger diameter bolt), followed by the bolt and flag nut in the axle side (smaller diameter bolt). Because the axle may have shifted slightly during removal of the control arm, the axle may need to be repositioned. A jack placed under the pinion flange of the rear axle may be used to properly align the bolt holes.
Step 10. Torque Upper Control Arm Bolts
Unlike the factory bushings, the bushings in the new control arms are free to rotate around the mounting bolt, allowing the bolts to be fully torqued without the vehicle at ride height.
- Torque the larger chassis side upper control arm mounting bolt to 111 lb-ft.
- Torque the smaller axle side upper control arm mounting bolt to 69 lb-ft.
Step 11. Install remaining control arms
Install the lower and upper control arms on the second side of the vehicle following steps 4 through 10.
Step 12. Inspect Installation
Fully inspect the installation ensuring that the suspension is free to
travel and that all fasteners have been properly installed and torqued.
Step 13. Lower vehicle
Lower the vehicle and perform a road test.
Questions, Comments, Suggestions
If you have any questions, comments, or suggestions regarding these instructions or product, please do not hesitate to contact us immediately. Thank you, and enjoy your new CHE Performance Product.
Technical Support/Contact Information
e-mail:info@cheperformance.com
Website: www.cheperformance.com