Toyota Tacoma Brakes and Tire Rod

I have a Toyota Tacoma and it has recently given me issues. I had the tire rods replaced about 3 weeks ago because they were rusted and cost me about 1300. I was driving the truck and my front right tire started making a noise and it jerked my truck to the right like something was pulling it. I got out and checked it out and the tire rod on the front right is rusted all to heck but the left side is good. These were brand new 3 weeks ago. I got back in and my brake peddle pushed all the way to the floor and weren't working all that great. I don't understand how it is already all rusted out. I need some help on what is going with the tire rod and also my brakes. Thanks.

maybe they only changed the one side but also sounds like you have something else like a wheel bearing going out or a caliper hanging up to pull to that side. i would take it back to the place that did the work and ask them to check it and why the new one looks so rusty