DIAMOND TRAC,9" FORD,31 SPLINE

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9" FORD, 31 SPLINE DIAMOND TRACUNDER DECELERATION, A DIAMOND TRACK ALLOWS THE LEFT REAR TO FREE-SPIN, WHILE THE RIGHT REAR STAYS LOCKED IN & KEEPS PULLING; THEN UNDER ACCELERATION, IT LOCKS BOTH WHEELS BACK INA DIAMOND TRACK USES ADDITIONAL GEARS TO ACCOMPLISH THIS, AS OPPOSED TO A DETROIT LOCKER, WHICH USE A SPRINGLIGHTWEIGHT ALUMINUM HOUSING Show more