Page 471 - 2021-22 Auto Performance_Hot Rod and Early Muscle
P. 471
1978-88 GM G-Body (Cont.)
Bolt-In Rear Coil-Over Kit with Con-
trol Arm Relocation Stock height for
1978-88 GM G-Body NEW! This coil-over
kit offers the
same great fea-
tures as the low-
ering rear coil-
over kit above,
but maintains
the stock ride
height, and al-
lows three positions
of trailing arm adjustment
the ride height from 1" below stock to as much as 2" above stock, providing extra clearance for drag slicks.
Rear Lower Control Arms/
Trailing Arms
UMI3655-B
These new manu-
factured boxed control
arms are a direct bolt-in designed to
replace the factory-stamped control arms. Over
time factory control arms rust which can weaken them while the factory bushings dry rot, harden and crack de- creasing the ride quality and vehicle performance. This new control arm setup is assembled with high-quality greaseable polyurethane bushings which improve ride GM B-body.
Adjustable Panhard Bar
UMI3659-B
This tubular
set-up quickly and easily
replaces the stock panhard bar on the
B-body vehicle adding increased rear-end stability
and rear-end adjustment. This adjustable item allows on-car adjustment when rear end centering is needed. By lengthening or shortening the panhard bar, you can easily move the rear end side-to-side for additional tire - ments are made while the panhard bar is still attached to the vehicle and only requires two jam nuts to be loosened. This item is a direct replacement for the fac- tory panhard bar and includes new grease-able Energy made using a left and right hand threaded adjuster CNC machined from 4140 Chromoly and heat treated for
Note: May not fit wagons, if item is being installed on a wagon please verify length before ordering. The center to center distance of this panhard bar is 35-3/4". The suggested maximum center to center length of this panhard bar is 36-1/4". The suggested minimum center to center length is 35".
1967-88 GM A/G-Body
1” Lowering Spring, Rear - Set
UMI4050R
These springs are wound from
feature a linear 130 lb/in rate. The
linear rate provides consistent
handling characteristics which are
applications while the increase in
stiffness reduces body roll and pre-
applications as well as corner carving/cruising. They
Part No.
UMI3064-110
Description
Bolt-In Rear Coil-Over Kit with Control Arm Relocation, stock height, w/ 14” 110 lb/in springs
UMI3048
Bolt-In Rear Coil-Over Installation Kit with Control Arm Relocation - Brackets only (shocks/springs not included)
Weld-In Rear Frame Notching Kit for
1978-88 GM G-Body NEW!
UMI3061
The UMI frame notching kit simpli-
make room for wider tires. Laser-
cut 1/8" thick mild steel follows the
natural frame contour with a slight
in between the kit and the original frame. Premium mild steel welds easily with a standard MIG welder. Cutting, welding, and fabrication required.
1959-72 GM B-Body
Adjustable Upper Control/
Trailing Arm "Banana Arm"
UMI3652-B
On-car adjustable control
arms for the rear of the GM
B-body vehicles. This rear
upper control arm is a direct
replacement for the factory arms and
are designed to minimize wheel hop, improve
cornering and help track consistency. This control arm is on-car adjustable and allows easy pinion angle adjust- two jam nuts and turning 4140 heat-treated chromoly adjuster that utilizes left and right hand threads. Fits
2021 HOT ROD AND EARLY MUSCLE
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