Application: 1978-1987 GM G-Body: Regal, Malibu, Monte
In May of 2014 we released these RRx Series™ tubular front lower
a-arms for the 1978-1987 GM G-Body that set a higher standard of
performance and quality. They are truely the new standard of comparison.
All of our RRx Series™ tubular a-arms are designed using aerospace
level technology and design tools. First we create a 3D scan of the
factory a-arm using a FARO® ScanArm™ with a 3D laser scanning
attachment. Then we use that 3D model of the factory a-arm as our
foundation for creating a tubular version inside of our Solidworks® 3D
After we're done designing the a-arm in Solidworks®, we then use
that 3D data to design the jig that we will use to build the a-arms. The
jig parts are then CNC laser cut and formed on an 8 axis CNC press
brake. The final result is dimensional accuracy to within .005"!
When we designed our RRx Series™ tubular front lower control arms,
we had two goals in mind. One was to provide the performance
capabilities needed for the toughest race tracks, the second was to
provide the strength and durability required for the demands of a daily
We're proud to say that we have accomplished both. If you're looking
for the strongest, most rigid, and best performing front lower a-arms
for the GM G-Body cars, you just found them!
Our RRx Series™ front control arms are a true "A" arm
rather than a "V" arm. This increases the arm's rigidity and
equalizes the forces delivered in to the frame. These a-arms are
completely gusseted to provide for maximum rigidity and durability, as
well as zero flex.
The CNC machined coil spring mounting tube is completely surrounded
and tied in with CNC laser cut 3/16" steel gussets that are solid
MIG welded. We also 100% TIG weld on CNC laser cut and formed 3/16"
steel bushing tube gussets for maximum strength and durability.
These a-arms are equipped with a CNC machined coil spring mounting
tube for installation of factory or factory style (lowering) springs.
The coil spring mounting base has a spring ramp that provides for proper
clocking and seating of the coil spring around it's circumference. This
allows the spring to spread it's load across the entire spring seat, not
at one small area as other designs on the market do. Note: We do not
alter the ride height.
Another feature of our RRx Series™ tubular front lower a-arms that
is missing from most of our competitor's products is a coil spring
retention tube. We weld a short piece of 4" o.d. tube to the base
of our coil spring mount for the coil spring to slide over. This locks
the coil spring in place and keeps it perfectly centered inside of the
The front shock's lower t-bar mounts to our a-arm base just like it
does on the factory a-arm. What that means is you can run any front
shock or front coil over system. If it mounts to the factory a-arm, it
will mount the same to our a-arm. That provides you with the flexibility
to run factory style coil springs or lowering springs, factory or
aftermarket front shocks, and aftermarket front coil over kits, all on
the same a-arm.
These a-arms come equipped with steering stops welded in place that
maintain the factory steering radius as well as polyurethane bump stops
that maintain the same suspension travel as the factory a-arms.
Finally, we include new spherical front sway bar end links. Our front
sway bar end links connect to the a-arm with a self-lubricating Teflon®
lined chrome moly spherical joint that provides a bind-free connection
for maximum handling performance. The top of the end link connects to
the front sway bar with low deflection polyurethane bushings.
Build Specifications & Features:
1.50" x .120" wall DOM tubing.
Ball joint cups are CNC machined from 2.75" x .375" wall
CNC machined tubular coil spring mount with a coil spring ramp on the
CNC laser cut 3/16" steel spring mount gussets that are solid
Precision greaseable ball joints (installed) with heavy duty Neoprene
Fluted polyurethane bushings with grease fittings (Delrin® bushings
100% TIG welded CNC laser cut and formed 3/16" steel bushing
Includes bind-free spherical front sway bar end links with Teflon®
self-lubricating race and polyurethane bushings for the upper
Heavy-duty steering stops are installed to maintain the factory
Includes polyurethane bump stops that maintain the factory suspension
Ship fully assembled and ready to install.
Can be used with factory style coil springs or lowering springs or
aftermarket coil over systems.
Available powder coated in your choice of the above colors for a
brilliant and durable finish.
Delrin® Bushings Option: These a-arms are available with CNC
machined Delrin® bushings. For the serious Road Race or AutoX car that
demands a zero deflection bushing. They are a bit harsher on the street
Priced per Pair -- Qty. 1 = 1 Pair