Hardrace 36mm front wheel hubs offer the best drivetrain solution to engine swapped Civics and Integra's. These hubs share the same dimension as 4-lug cars but the center bores are machined to 28 spline. This allows you to the replace the original 26 spline / 32mm axles to the more robust 36mm ones that B/F/H/J/K-series engines commonly use to withstand higher horsepower and torque output. The hubs are constructed from CNC chromoly steels and come with high quality Japan made bearings to offer superior strength and durability. The hubs also feature extended length wheel studs to safely accommodate wheel spacers.