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©2011 Edelbrock LLC
Part #1580 & 1585
Brochure #63-1580
Rev. 1/11 - AJ/mc
Edelbrock 4.6L Ford Supercharger System
for 2005 and later Mustang GTs
Installation Instructions
Page 33
Tubular Trailing Arms are constructed of 1-1/4"
diameter.120" wall steel tubing which offers increased
strength over other designs, and have the added
advantage of lighter weight.
Tubular Lower Trailing Arm...............................#5276
Tubular Upper Trailing Arm...............................#5266
Heavy-duty Adjustable Trailing Arms allow easy rear
suspension adjustments for optimum handling and
traction. They can be adjusted without removing the arms
from the vehicle. Simply loosen the jam nuts and adjust
pinion angle. Spherical ball assembly with Delrin bushings
allows the rear suspension to move more freely. Includes
graphite/polyurethane differential bushings to replace soft
OE bushings. Sold in pairs.
Adjustable Upper Trailing Arm......................... #5253
Eibach produces springs with unparalleled precision and
quality, using Hi-Ten spring steel produced to exacting
tolerances. Custom CNC coilers yield race quality springs
with street-friendly performance and great looks. The
progressive rate design produces excellent ride quality
and aggressive handling characteristics. These springs
combined with Edelbrock suspension components will
improve your vehicles handling performance, cornering
ability, and braking stability.
Eibach Coil Spring Set......................................#5287
These brackets lower the mounting point of the rear
trailing arms. A must for lowered vehicles; they correct the
trailing arm angle while lowering the instant center of the
vehicle, which improves forward bite and eliminates rear
squat during hard acceleration. Two non-stock mounting
locations are available as well as the stock location and
they will accept Edelbrock, OEM, or any other aftermarket
lower trailing arm on the market. Grade 8 hardware is
included; welding is required for installation.
Trailing Arm Relocation Bracket.....................#52103