Paul from SWISCO responded:
August 5, 2016
The parts you show resemble our 15-156 spring cover, 15-157 balance drum, and 15-192 pivot shoe. CertainTeed now uses the new style 26-175 pivot bars, but they should still fit in the new pivot shoes. Also see our Series 170 coil spring. You will need the number stamped on the old spring when ordering.
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