Steering Tie Rod End. Proforged tie rod ends are built using some of the toughest steel on the planet. Each unit is sealed with specially-designed CR-rubber boots for ultimate durability. Proforged applied the same technological advancements in ball joint construction to their line of Tie Rod Ends and Rack Ends, delivering a premium product to withstand the rigors of performance car and truck applications. The result is a more durable product that extends the lifespan and maintains the performance level of the steering system during demanding conditions. reused longevity and durability. Proforged Tie Rod Ends are available for nearly every year, make, and model vehicle found on the road today. About Proforged: Our products are designed using CAD programs and are validated through hardness testing, microstructure analysis, surface finish examination, and roundness testing.