Enhanced Driving Safety: These wheel spacers increase the axle track by 1.5 inch, widening the wheel track to lower the vehicle's center of gravity. This effectively solves severe body sway during high-speed cornering, significantly improving the vehicle's grip, stability, and handling. Product Specifications: Our wheel adapters includes 4 wheel spacers, each with a thickness of 1.5 inches (38.1mm), a bolt pattern of 6x5.5 in(6 x 134 mm) , a hub bore of 3.43'' (87.1mm), and a thread pitch of M14x1.5. Please carefully check your vehicle's manual specifications before purchasing to ensure compatibility. Wide Compatibility: These wheel spacers are compatible with many Ford vehicles from 2015 to 2023, including: Ford: 2015-2023 F150, 2015-2022 Expedition, 2015-2022 Lobo, 2015-2022 Navigator. Forged Aluminum Alloy: The spacers are forged from 6061-T6 aluminum alloy, providing exceptional strength and wear resistance, making them more robust and durable