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Edelbrock AdjustableTrailing Arms are fully assembled, greased, and ready to install.
1. Install polyurethane bushing into axle housing, facing same direction as stock.
2. Install polyurethane thrust washer on inboard side of bushing. NOTE: Left side only, some thrust washers will require trimming
for clearance to axle housing. If you install thrust washer at the same time as you install bushing, it requires less grinding for
clearance.
3. On 1978-1988 model year vehicles - using metric stock arm pivot bolts, drill or file front locating hole to 1/2" diameter to enable
use of supplied 1/2" diameter bolts.
4. Install new trailing arms with the grease fittings facing down, locating the front bolt first.
5. Place one drop of blue Loctite™ on clean threads and torque the nut to 70 ft./lbs.
6. The trailing arm should then pivot smoothly.
7. Place a thin coat of supplied grease on the sides of the new axle housing bushings.
8. Pivot trailing arm into position over polyurethane bushing and thrust washer. Install rear bolt in same direction as original.
9. Place one drop of blue Loctite™ on clean threads and torque the nut to 70 ft./lbs.
10. Although Edelbrock Trailing Arms are pre-lubed, you may want to finish your installation by lubing the front bushings with a
greasegun. Be sure to replace the dust caps on the Zerk fittings to prevent dirt and corrosion from damaging the fitting.
Check all nut and bolt tightness after first 10 miles.
NOTES:
1. Edelbrock Adjustable Trailing arms come pre-adjusted to stock length. Pinion angle can be adjusted by loosening the jam nuts
on the arms and turning the aluminum adjuster sleeve in the center of the arm. Both arms should be adjusted evenly. A properly
installed and adjusted trailing arm will have the spherical ball straight and parallel with the ball housing. If the ball is twisted in
its housing when installed, the arm could fail during suspension articulation. After adjustment has been made, use a drop of
Loctite™ on threads at jam nuts.
2. Jam nuts should be checked periodically for tightness.
3. To further enhance the handling and performance of your GM vehicle, check our catalog to find out more about Edelbrock
Suspension components such as coil springs, lower trailing arms, tubular braces, anti-hop bars, tie rod sleeves, etc. To order
our catalog, call 1-800-FUN-TEAM.
©
2006 Edelbrock Corporation
Catalog #5247, #5248, & #5249
INSTALLATION OF EDELBROCK ADJUSTABLE TRAILING ARMS
Edelbrock Corporation, 2700 California St., Torrance, CA 90503
Tech Line: 1-800-416-8628
Tech Fax: (310) 972-2730
E-Mail: Edelbrock@edelbrock.com
Page 2 of 2
Brochure #63-0469
Rev. 6/06 - DA/mc
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