105 Dual Booster Brakes

["Stefan Romiti" <sromiti@domain.elided>]

Hi I have a 1974 2000cc 105 GTV, RHD ( I live in Australia).After about 45
minutes driving in suburbia, the brakes tend to stick for a few seconds after
releasing the pedal.  For example, approaching a set of lights, once stopped
the
brakes will stay on for about 3-5 seconds, then the car may roll forwards or
backwards, depending on road incline.Different "experts" have
suggested different things.  At this point the front pads are new, all the
callipers have been checked for sticking, brake hoses are new, fluid has been
completely replaced with dot4, boosters were reconditioned by previous owner
in
1999, car has travelled little since then.  There is no change to brake pedal
feel and stopping performance, just this sticking tendency.Does anyone in the
group have any suggestions and what parts would I require to rectify the
problem
in your opinion?
Also from which shops in Australia is best advice and value (second hand parts
often OK) obtained?
Thx & regards

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