GKTech - R33 GTS-T / R34 GT-T SKYLINE TUBULAR TENSION RODSThe GKTECH Tension Rods (aka caster arms) allow adjustment in your Skylines castor to bring the wheels forward and increase steering response. In general, the more caster the better. Allowing sharper turn in and faster return to the straight position when letting go of the wheel. Our arms feature high quality 5 8" Teflon lined pillow ball rod ends which eliminate the flex found in factory rubber bushing offering a more direct and predictable feel.