I don't know if the gear and shaft from other Gm products can interchange.or if other gm handles would work. I remember that when Mustangs and cougars were being built there were 105 different handles in the factory. leather interior padded panels use handles with different offset to clear the padding. cougars had heaver glass and the handles were longer than mustangs. After looking for missing handles on some of my projects I gave up and found 4 matching handles in the salvage yard that would fit the shafts.