Freightliner Tandem Axle TufTrac 2 Spring 56" Axle spacing 1999+

TufTrac® springs are available only as assemblies with center clamp hardware.  Second design has center stud and dimples.  Bolts fastening the upper rubber bolster to the U-bolt plate have been upgraded to 9/16".  Where required, drill out early design 1/2" bolt holes to current design 9/16".  1999 vehicles originally may have had either first or second design springs.