O/S/R Brake Locking Up When Cold??

[jaky cakes]

Hiya folks!
I have a wee problem with my brakes, which first appeared after replacing all pads/shoes and discs a few months back - but is steadily getting worse.

The problem is this...
when the car has been stood for a while (like overnight, or parked at work for 8 hours) when i go to drive it and press the brakes - they squeal very loudly. after a couple more presses of the pedal - the squealing stops.
OK - maybe a bit surface rust forming on the discs - no problem, but if i press the brakes a little firmer, the O/S/R wheel locks up and skids along the road. - Again after a few press of the pedal - all is well.
By pressing "firmer" I mean the sort of force required to brake gently from 20MPH to standstill when approaching a t junction coming out of a built up street.

The brakes - when warm stop the car firmly and surely with no pulling to ether side and no fade when stopping from motorway speeds. the fluid level is good and fluid is in good condition ( changed last year) with no air in system.
Just cant understand how a rear drum would lock up when braking - as if all braking force was being applied to that one wheel.

any thoughts - or similar experiences???

[Apache]

Most likely worn drum / pad so the pad is sticking in the worn 'groove' if you like. Could also be something really horrible like fluid or diff oil (!) in the drum causing the pad to stick via suction.

Either way, needs sorting PDQ!

[jaky cakes]

Been think along those lines myself - but then thought - the wheel turns very freely - until i first press brakes - around 400yds later.
I intend to take wheel/drum off again this afternoon - once i've finished cooking lunch - and the rain stops - if it's still light outside!
I must buy me one of those heated double garages with a three post lifter!!!

[Hilux]

Hi got the heated garage but no room for the LIFT.

Regards Hilux-Bob

[lord lucan]

hi sounds like u have brake grab, remove the drums and manually adjust the brakes up.

[jaky cakes]

hi sounds like u have brake grab, remove the drums and manually adjust the brakes up.

Could you explain what this is?