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©2007 Edelbrock Corporation
Rev. 9/07 - DA/mc
Catalog #5253
Brochure #63-0456
Page 1 of 2
Edelbrock Adjustable Trailing Arm
for 2005-2008 Ford Mustang
Catalog #5253
Installation Instructions
Please study these instructions carefully before installing your new Adjustable Trailing Arm. If you have any questions,
contact our Technical Hotline at: 1-800-416-8628, 7 am to 5 pm, Monday-Friday, Pacific Standard Time or
e-mail us at Edelbrock@Edelbrock.com.
Tools and Supplies Required:
❑ Floorjack ❑ 18mm socket, combination wrench, and torque wrench
❑ Jackstands ❑ Blue Loctite™
❑ Tire chocks ❑ Grease gun
❑ Lug wrench
REMOVAL OF STOCK TRAILING ARMS
1. Place car on level surface and place tire chocks in front of and behind front tires.
2. Support rear of the car on jackstands and remove the rear wheels.
3. Place a floorjack under the differential and lift up slightly to remove tension from the trailing arm bolts - make sure
not to lift the car off the jackstands
(Figure 1).
KEEP FLOORJACK UNDER CAR DURING THE COMPLETE REMOVAL AND INSTALLATION PROCEDURE.
4. Remove bolts retaining trailing arm support bracket.
NOTE: Two bolts can be reached from the undercar, the
third bolt is accessed under rear seat. Rear seat lower
cushion is retained by two clips at the front of the cushion.
5. Unbolt front trailing arm bolt from support bracket.
6. Clean frame at trailing arm pivot area with a wire brush.
Fig. 1
IMPORTANT NOTE:
Proper installation is the responsibility of the installer. Improper installation will void warranty and may
result in poor performance and engine or vehicle damage.