9" or 10" brakes?

[Rangerpowered]

My slack adjuster cable broke and when I went to Autozone they needed to know if I had 9" or 10" Drum brakes for the right kit. I have a 98' supercab 4x4. I assume I have the 10" drums but wanted to make sure first.

 

[michowski]

take a ruler to the drum.

 

[krugford]

I would "assume" you have the 10 inch brakes, but just to be sure, measure the drum.