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The 4-link suspension is the most common and proven setup among the many different classes in drag racing, but it also has its own limitations — namely in regards to adjustability. That’s where Rick Jones Race Cars and Quarter-Max come to the table.A 4-link is designed to locate the rear axle with four links, two on each side. Besides these links controlling and transmitting the loads placed on the axle during acceleration and braking, the bottom links also control the axle placement front to re …