Oct 2004
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 I fitted a later model
Studebaker self adjusting system from a 1964 Stude, new shoes, master
& wheel cylinders plus hoses.All brakes work good except the Left hand
rear keeps locking up for some reason. When the car is cold no problem
, the wheel turns okay but after a few miles the L/H rear wheel slowly
locks up. If I jack the car up the wheel will easly turn back but
locks when turned forward. When the car sits for a while and cools
down the wheel will turn forward okay. It seems the brake is coming on
by itself.I also have fitted a worn brake drum to this wheel as I
thought clearence may be the cause but the same thing happens.I have a
shop manual and everything is per the book, I have done many Stude
brakes but not struck this before. could it be something to do with
the self adjuster on this wheel. your ideas please. thank from Roger.
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Sounds like the parking brake cable is too tight.
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My 55 was doing exactly the same thing last week- and it was  a sticking
emergency brake actuator arm 
It wasn't totally on- so the wheel would roll cold- but after a mile of drving
the brake shoe would expand from heat and almost lock up
 Brake elights come on and stay on even after its shut down?  Mine did- from
the fluid boiling and expanding
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One of the common causes of this is the rubber hoses at the wheels. Did you
replace them?
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mergency brake is not properly adjusted at that side; dragging
just enough to get hot over a period of time. Is the sheathing over
that side's emergency brake cable allowing the cable to fully release;
i.e, not slightly seized inside and then dragging when not fully
releasing?

2. Odd but possible: the rear wheel bearing axle shaft end play is too
loose.
With too much end play, the drum might not be staying centered around
the brake assembly when the car is underway and under load. This could
cause brake drag, but only under load, that would cause it to heat up.
Cools down and then you jack it up, relieving the load, so it turns
fine cold, off the ground...or for a few miles ON the ground before
getting hot.
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The brake adjuster on one of the rear wheels on my 56 Transtar would lock up
everytime I backed up.Turned out the whole adjuster was seized and turned
where it wasn't supposed to(hope that makes sense).Jacked it up,freed up
adjuster,tighned it so it couldn't move anymore,end of problem.
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Take the drum off and look at the centering piece on the top pivot. There is a
small arrow on it. Make sure it is pointed toward the front. Its the piece both
of the shoes contact at the top.
    It was called the anchor block and is part no. 535146. It was present in the
early 1950's brakes on, I am uncertain when they started using this part.
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////advice on my locking brake problem that it seems to be solved, I 
removed drum and took off brake adjuster, went for a drive ,then jacked 
wheel up, wheel was locked again, then I noticed brake lights were on 
so I backed of the master cylinder rod, there was a slight noise and the 
brakes released and the wheel turned freely so it seems it was the brake 
adjuster coming on by itself and a case of the M/C rod not being adjusted 
properly,