Strange brake problem, any ideas?

[Eighteeteewhy]

Peugeot 205 td non ABS.

Under initial braking the car pulls to the left but then after further braking straightens up and brakes straight and true. Brakes are updated items and have been fitted for about 6months and have been fine up until now.

However the car was in the garage recently to have N/S/F wishbone replaced. Could this be related?
Thanks, any ideas suggestions welcome.

[johny105]

did it start directly after the wishbone was changed?

also i believe there is a bias valve that can clog up stopping one of the back brakes from working or causing it to lock up .

await more informed answers re: bias valve

[NHK244V]

was the tracking reset after ?
could be the other side wishbone has fone or the balljoint, no balence valve from side to side only front to rear.
Could be wheel bearing play on one side, causes pad knock off on the side with the play.