[Tannaton]

Good advice above but you must also check the inside edge of the brake drum/disc for corrosion - if they've become corroded then they are scrap. Rusty steel is harder then clean steel and a shiny smooth surface results with much less friction.

Discs in good condition, genuine Volvo shoes (only around £30 online) are they key, the in-drum adjusters simplify setting it up and further improve effectiveness.