Edelbrock 25-4066 Installation Instructions
©2006 Edelbrock Corporation
Catalog #5267, #5268, & #5269
Brochure #63-0357
Rev. 6/06- DA/mc
Page 1 of 2
EDELBROCK UPPER TRAILING ARMS
for 1978-1988 GM A/G Body (Catalog #5267)
1968-1972 GM A-Body (Catalog #5268)
1964-1967 GM A-Body & 1967-1978 American Motors Rebel,
Matador, Marlin, and Ambassador (Catalog #5269)
INSTALLATION INSTRUCTIONS
Please study these instructions carefully before installing your new Trailing Arms. If you have any questions, please
contact our Technical Hotline at: 1-800-416-8628, 7:00 am to 5:00 pm, Monday through Friday, Pacific Standard Time
or e-mail us at Edelbrock@Edelbrock.com. Please fill out and mail your warranty card.
Suggested Tools for Installation:
❑ Jack and proper load rated jackstands
❑ Tire chocks
❑ Lug wrench
❑ 18mm or 3/4” socket and combination wrench
❑ Torque wrench
❑ Blue Loctite
❑ Grease gun
KEEP FLOORJACK UNDER VEHICLE DURING THE
COMPLETE REMOVAL AND INSTALLATION PROCEDURE.
CAUTION: DO NOT REMOVE BOTH TRAILING ARMS
AT THE SAME TIME OR THE AXLE WILL ROTATE AND
THE TRAILING ARM INSTALLATION WILL BE MUCH
MORE DIFFICULT.
4.
Start with either trailing arm and remove the rear
bolt. NOTE: Replace the bolts in same direction as
original
(see Figure 2)
.
REMOVAL OF STOCK TRAILING ARMS
1.
Place vehicle on level surface and place tire chocks
in front of and behind front tires.
2.
Support rear of the vehicle on jackstands and
remove the rear wheels.
Use proper rate
jackstands on hard level surface
(see Figure 1)
.
3.
Place a floorjack under the differential and lift up
slightly to remove tension from the trailing arms
bolts. Make sure not to lift the vehicle off the
jackstands
(see Figure 1)
.
Figure 1
Kit Contents
Qty.
Part #
Description
2
25-4066
Upper Trailing Arms (#5267)
2
25-4067
Upper Trailing Arms (#5268)
2
25-4068
Upper Trailing Arms (#5269)
Figure 2
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.