1937 1938 1939 1940 1941 1942 1945 1946 Chevy and GMC truck PASSENGERS SIDE  window regulator. We take good cores and our retired machinist / mold maker degreases and disassembles each unit. He then repositions the round ride plugs to make sure there is a good glide. The regulator crank mechanism is take apart, cleaned and the hood is put in the lathe as needed to resize the outlet. Then they are greased, a new small spring added and reassembled and tested. the main heavy spring is installed and the unit is completely media blasted, primed and painted semi-gloss black.