Edelbrock Ford Mustang 63-5221 Installation Instructions

Please study these instructions carefully before installing your new Adjustable Trailing Arm. If you have any questions, contact our
Technical Hotline at:
e-mail us at Edelbrock@Edelbrock.com.
Tools and Supplies Required:
❑ Floorjack
❑ (4) Jackstands
❑ Tire chocks
❑ Lug wrench
❑ Edelbrock trailing arm hardware kit #5216
for '79-'98 - optional; stock hardware may
be used if in good condition.
Proper installation is the responsibility of the installer. Improper
installation will void warranty and may result in poor performance and
REMOVAL OF STOCK TRAILING ARMS
1. Place car on level surface and place tire chocks in front of and behind front tires
(See Fig. 1).
2. Support rear of the car on jackstands and remove the rear wheels.
3. Lift rear axle with floor jack to approximate ride height, then support rear axle with
jack stands (See Fig. 2).
KEEP JACKSTANDS UNDER CAR DURING THE COMPLETE REMOVAL AND
INSTALLATION PROCEDURE.
CAUTION - DO NOT REMOVE BOTH TRAILING ARMS AT THE SAME TIME OR THE
AXLE WILL ROTATE AND TRAILING ARM INSTALLATION WILL BECOME MUCH
MORE DIFFICULT.
4. Remove rear sway bar. Remove clip nuts from sway bar (See Fig. 3). Make sure
car is still firmly supported on jackstands.
5. Lift rear of trailing arm with floor jack so bolt can be removed (See Fig. 4).
Remember, do one side at a time.
6. Carefully remove rear trailing arm bolt. CAUTION: Trailing arm is under tremendous
pressure from the rear spring. Be sure that the floor jack is sturdy and able to
control the release of tension in a smooth, controlled manner.
7. Carefully lower trailing arm, releasing tension on rear spring. Note that the opening
at the bottom coil of the spring is towards the rear of vehicle. It must be re-installed
in the same position or the ride height will be affected. Remove spring. Inspect the
rubber insulators on spring and replace with new Ford parts (#D8BZ-5536-A), if
necessary.
8. Remove front bolt and old trailing arm. A 14"-16" long extension will make it easier
to reach the bolt due to interference from the muffler.
9. Clean frame at trailing arm pivot area with a wire brush.
©
2007 Edelbrock Corporation
Rev. 6/07 - DA/mc
1-800-416-8628, 7
❑ 15mm & 18mm sockets (1/2" drive) and combination wrenches
❑ Torque wrench, 1/2" drive 14"-16" extension
❑ Grease gun
❑ Blue Loctite™
IMPORTANT NOTE:
engine or vehicle damage.
for 1979-2004 Ford Mustang

INSTALLATION INSTRUCTIONS

am to 5 pm, Monday-Friday,
Page 1 of 2
Edelbrock Trailing Arm
Catalog #5221
Pacific Standard
Brochure #63-5221
Time or
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Catalog #5221