HV/Workstar/7000 Series (New Generation) - Front
7300, 7400, 7500, 7600, and 7700 - HV507, HV513, HV607, and HV613 (2002-22)
10,000 through 14,000LB nondriving axles only
see separate section for springs for front drive axles
These axles use 4 inch wide full taper or multileaf springs with 3/4 inch diameter spring bolts