Ford 351C Cleveland 460 Cast 0.500" Shaft Distributor Gear [Thunder] They're designed to be installed

They're designed to be installed with no modifications

so you are good to go

These forged steel axles are designed to fit a range of applications and are non-tapered with hardened bearing seats

We made our own upgraded versions

Ford 351C Cleveland 460 Cast 0.500" Shaft Distributor Gear [Thunder] They're designed to be installedMatch your camshaft with Speedmaster iron distributor gears. These small gears have a big impact on your engine's performance. Best suited for hydraulic or solid flat tappet camshafts, our iron distributor gears are the perfect mates for your cast iron cams. The right choice is critical for your engine and your wallet choose Speedmaster iron distributor gears. They are manufactured from top quality cast iron, and then nitrided for durability.