ive got this audible pop whenever i brake at low speeds or brake hard. i think i narrowed it down to the front spindel brushing needing to be replaced, can i just pay 30 dollars and get the brushings or is it more complex

 

What year Ranger?

I assume 4x4

Reads more like loose radius arm or torsion bar bushing depending on year

Diagrams here: The Ford Ranger Front Suspension

You are getting front axle roll when braking

 

2002 and no 4x2