UMI's rear trailing arms for the fifth generation Camaro utilize our
Roto-Joint technology for a bind free performance and quiet
comfortable ride quality. The Roto-Joint design is a pivot ball lined
with a greaseable delrin race designed to offer 28 degrees of total
unrestricted movement, more than adequate for a bind free, low friction
operation. The Roto-Joint design improves performance over the factory
rubber and aftermarket polyurethane bushings by allowing the suspension
to articulate correctly, and provide precision handling. The installed
UMI Roto-Joint allows rear end free movement when high handling, auto
cross or road race is a concern while still being a 100% streetable
setup. The installed delrin race, which lines the spherical ball,
absorbs shock and road noise for a quiet and smooth operation on any
street or track driven vehicle. The rear toe rods control the camber
alignment of the rear end preventing the tire from moving inward or
outward during suspension load. The factory toe rods are made from
flimsy stamped steel and feature soft rubber bushings causing deflection
which leads to erratic handling, poor traction and possible rear tire
wear. Replacing the factory arms with heavy duty toe rods makes for a
more stable suspension, improved traction and better braking. Toe rods
are a direct bolt in and installation time is less than an hour using
basic hand tools.
Features:
- Fabricated from 1” x 2” rectangular tubing
- CNC machined DOM bushing holders
- Spherical Roto-Joints for a bind free performance
- Fully TIG welded for outstanding strength
- Direct bolt on, uses OEM hardware
- Durable powder coat finish
- Made in the USA
More about Roto-Joint Technology….. UMI's
Roto-Joint, short for Rotational Joint, allows 28 degrees of total
rotation and unrestricted movement throughout the vehicles suspension.
The Roto-Joint is designed to work like a spherical rod end while
maintaining streetable qualities of a softer bushing. The Roto-Joint is
designed to articulate and prevent suspension bind, and since the
installed delrin race does not deflect like softer bushings, there is
an improvement in traction and a significant reduction in wheel hop.
The construction of the Roto-Joint features a 4140 chrome moly, hard
chrome plated spherical ball which rotates in a delrin race. The 4140
chrome moly material and hard chrome plating are designed for extensive
wear resistance against hard driving and accumulated miles. The
spherical ball rotates in the CNC machined delrin bushing, which is
contoured for the spherical ball to allow unrestricted movement as the
ball rotates. Delrin is the bushing material of choice due to its high
resistance against wear, great tensile strength, and ability to
maintain its physical properties. The housing of the Roto-Joint
features 4140 chrome moly threads, and a CNC machined bushing holder
TIG welded together for the utmost in strength and durability. The UMI
Roto-Joint is adjustable and 100% rebuildable. This means as the delrin
race wears the adjuster ring can be tightened using the optional
spanner wrench to apply tension to the ball. If the delrin race would
ever wear completely it can be replaced easily.
Spanner Wrench- This spanner wrench is used for
adjusting and disassembling of Roto-Joints used in all UMI Performance
products. Over time if the delrin race inside the Roto-Joint would wear
the spanner wrench is used to tighten the adjusting ring applying more
pressure to the delrin inside. The spanner wrench is also used to
disassemble the Roto-Joint for cleaning, inspection and rebuilding.
