I had my 2 front tires replace on by 88 and they told me that I deeded a brake job I declined.
One of the parts suppliers that I talked with they recommend that there be no more than a ¼ inches between the rotor and the pads.

 

1) Examine the brake pads by looking down the caliper (with wheels off is easier) Spec is in the manual, depending on user about 3/16"

2) run fingernail across brake disc, especially where the brake pads run. There should be minimal indentations or scratches

3) measure thickness of disc with vernier caliper (minimum spec in FSM) ..or online

4) Consider age of rubber parts in brake calipers. If they are original, it is time to replace them

If you have metal pistons, examine them, ceramic ones probably last a lifetime

Its a good idea to replace rubber brake lines if they are 20yrs old

 

Thank you awg for your quick reply before my edit!

 

Thank you awg for your quick reply. Before my edit’s