You need to inspect your backing plates for grooves in the pads where the brake shoes contact the backing plate. during a break job these spots are supposed to be lubed with proper non grease brake backing plate lube. some people use never sieze compound... also make sure brake shoes were installed correctly having the primary and secondary shoe correctly in it's place, if you have grooves in your backing plates then the shoes will bounce up and down as they move across the groves this will make a clicking noise, also have seen cracked brake drums make noise... give close inspection with wheels off , if you can jack rear of car off ground support with jack stands , chalk front wheels , then remove wheels on both sides but use a lug nut to hold brake drum on securley, now have someone watch and listen and watch as you let wheels spin under power of engine at low rpm , inspect and watch for possible clues...please rate my help, thanks...
you need to inspect your backing plates for grooves in the pads where the brake shoes contact the backing plate. during a break job these spots are supposed to be lubed with proper non grease brake backing plate lube. some people use never sieze compound... also make sure brake shoes were installed correctly having the primary and secondary shoe correctly in it's place, if you have grooves in your backing plates then the shoes will bounce up and down as they move across the groves this will make a clicking noise, also have seen cracked brake drums make noise... give close inspection with wheels off , if you can jack rear of car off ground support with jack stands , chalk front wheels , then remove wheels on both sides but use a lug nut to hold brake drum on securley, now have someone watch and listen and watch as you let wheels spin under power of engine at low rpm , inspect and watch for possible clues...please rate my help, thanks...
check also for wheel cyls tight in there mounting, if you have loosley mounted wheel cyl they wheel move and make noise against the side of the mounting hole...
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REMOVAL & INSTALLATION
It is a good idea to only disassemble and assemble one side at a time, leaving the other side intact as a reference.
ADJUSTMENTS
The drum brakes are self-adjusting and require a manual adjustment only after the brake shoes have been replaced, or when the length of the adjusting screw has been changed while performing some other service operation.
Drum Installed
Fig. Fig. 2: When using a brake adjustment gauge, first measure the inside diameter of the drum (top) and then adjust the brakes shoes to the proper outside diameter (bottom)
Fig. Fig. 3: Measure brake shoe thickness in several places around the shoe
Inspect the brake shoes for wear using a ruler or Vernier caliper. Compare measurements to the brake specifications chart. If the lining is thinner than specification or there is evidence of the lining being contaminated by brake fluid or oil, replace all brake pad assemblies (a complete axle set).
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