bleeding rear brakes
It is possible they have been broken off previously. Otherwise they are very obvious to find, right near the top of the caliper. When they break off, they break flush and after a bit of dirt, become invisible.
check on the top center of the backing plate on each side - use a metal brush to clen away any rust corrosion - they are probably very rusty. if they are broken i would suggest removing the rear drums and replacing the wheel cylinders.
thanks much had dirt around bleeders so cleaned them and all is well thanks again
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