Steering Tie Rod End. We can offer this because our parts are engineered, tested, re-tested, and subject to strict quality control procedures - our quality is second to none. CRAZY STRONG TIE RODS. Proforged tie rod ends are built using some of the toughest steel on the planet. Forged SAE4140 chromoly steel studs are enclosed in forged SAE1045 housings, heat treated for strength and durability, and every fit surface is CNC machined for precision fit and finish. Each unit is sealed with specially-designed CR-rubber boots for ultimate durability. Theres a reason why the most well-respected performance suspension brands use Proforged products - were fanatical about quality, performance, and durability. Professionals save time and money with our products that outlast inferior brands. Do the job with confidence - replace your worn components with the leader in performance chassis parts. 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.