What is an SLA Suspension (short long arms suspension)?
A short-long arms suspension, or SLA, is also known as a double wishbone suspension. The upper A-arm is shorter than the lower A-arm, hence the short long arm designation. SLA, or double wishbone suspension systems, are more performance-driven and used on sports cars and high-performance cars for ultimate handling.
A double wishbone suspension, or SLA, is an independent suspension design for automobiles using two wishbone-shaped arms to locate the wheel. Each arm has two mounting points on the chassis and one joint at the knuckle. The shock absorber and coil spring mount to the lower arm to control vertical movement. SLA suspension allows the careful control of the motion of the wheel throughout suspension travel, controlling camber angle, caster angle, toe, roll center, scrub radius, and more.
The unequal arm lengths cause a change in the camber of your Mustang as the suspension travels, which helps to keep the contact patch square on the ground. Increasing the ultimate cornering capacity of your Mustang reduces wear on the outer edge of the tire, increasing tire life.