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The progressive spring rates are carefully calibrated to provide a comfortable ride while offering improved handling characteristics
Compatible with existing calipers and rotors
Its textured surface enhances grip and prevents cargo from shifting
The modification helps eliminate electronic damping variability
Heat Treatment: The specially heat-treated 8740 chromoly steel ensures maximum strength and durability
ARP Main Bolt Kits | Multiple Ford Fitments (155-5202) YMM_2024_2026_Mercedes_Benz_E_Class_AMG_Br214 The progressive spring rates areMain Bolt Kit by ARP ARP High Performance Series main bolts are rated at 180,000 psi and a popular premium replacement for OEM fasteners. Designed to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat treating which gives them about 2,000