![]() Model years between 1967-1972 require similar components based on whether originally equipped with disc brakes or not. For first-gen C10s (1963-1966), upper and lower ball joints, outer tie rods, and a pair of billet conversion sleeves are required to ensure the X10 spindle drops in place. ![]() Machined to accept late-model C10 components, it’s a drop-in affair for Square Body trucks. The new X10 spindle is literally the first spindle and hub combination specifically designed with bigger brake packages in mind, from CPP to Wilwood to Baer and beyond.Īvailable in both 5- and 6-lug bolt patterns, the X10 spindle package can be built to suit any C10 truck from 1963 on by using a handful of additional components. The new spindle retains CPP’s Modular 2-1/2-inch drop spindle dimensions while adding the performance and reliability gained from the stronger bearing hub assembly and a sealed bearing pack that virtually eliminates axle pin flex, a common problem with traditional spindles. Enter the X10 spindle.ĬPP’s X10 spindle is a completely redesigned unit based around a sealed, captured-bearing hub similar to those found on modern Corvettes and fullsize GM trucks. They’ve had a proven design in their Modular drop spindle for years, but as the brake kits and wheel/tire combos grew larger, they started to turn their attention to developing a more modern spindle and bearing design. Purveyors of both modern spindle designs as well as big brake offerings, it’s no surprise that Classic Performance Products (CPP) recognized this situation and sought to develop a solution. ![]() But what happens when a stock spindle and its bearings, designed for a drum brake and a 15-inch steel wheel and tire, are subjected to the rotating mass, inertia, and torque of a 13-inch disc brake and accompanying 20-inch aluminum wheel? Be it an aesthetic upgrade or a more performance-based option, there’s no arguing the popularity of these modifications. Filling those massive wheel openings with an appropriately sized roller while upgrading the rather anemic braking system makes a ton of sense, after all. Big brakes and even bigger wheel and tire combos are arguably among the most popular upgrades in the classic truck market.
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