These Schumacher Racing Products aluminum caster blocks are a factory replacement set for the Cat L1R platform, machined with a fixed 6-degree caster angle. The left and right yokes are clearly marked L and R for straightforward installation. Sold as a pair, these metal caster blocks are a direct upgrade or replacement over the stock units for consistent front-end geometry. Features: 6-degree fixed caster angle Machined aluminum construction Left and right pieces included Marked L and R for easy identification 7/7/26 cs