lines from rear passenger to which fixed it but I noticed I need rear brakes

Here is a guide that will help with this:

https://youtu.be/PAjUx1Rct4Q

and

https://www.2carpros.com/articles/how-to-replace-rear-brake-pads-and-rotors

Plus below is the process from the manual that will help with this.

Please run through this material and let me know what questions you have. Thanks

when braking and achieving a speed of about 5mph or less the brakes squeak, my friend told me I need brakes can you help?

Here is the information you requested. Here is a tutorial on how to remove and replace rear brake pads and rotors:

https://www.2carpros.com/articles/how-to-replace-rear-brake-pads-and-rotors

Here is a YouTube video from our site on how to compress the rear caliper piston when performing a rear brake job:

https://youtu.be/j8YwfSKEzZo

I've attached picture steps below on how to replace the brake pads on your truck. Hope this helps and thanks for using 2CarPros.