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1989 Toyota 4runner Suspension Super Axles

8.Once the third member was installed, Toby finished up the front-axle assembly, installing a new set of Longfield Super Axles. We picked these units for several reasons: They retain the stock-style Birfield design and allow up to a 48-degree turn without the annoying steering feedback commonly found with U-joints. They also are said to be the strongest Birfields made. Constructed of 4340 chromoly and 300M steel, they feature smaller balls to allow for a thicker bell and cage. The shafts are also made from 4340 chromoly, and instead of using the standard 27 splines at the Birfield, they use 30.
 1989 Toyota 4Runner Suspension Super Axles