when to replace shock absorbers

[miked]

OT
nasa magkano (labor only) ang damage for shock replacement?
any mechanic can do it?
ok ba sa zafra motors?

kung magkapitbahay lang tayo e beer at pulutan lang iyan. hehe

about to change na rin saakin... nagnonosedive na at may wear pattern sa front tires ko na signs of a shock absorber not providing positive contact of the wheels to ground.