Advance Adapters GM SM420 Transmission To Dana 300 Transfer Case Adapter - 50-9702 - ADV50-9702
Detail
SM420;Dana 300 transfer case; California Residents: WARNING 10.5 case length, 5.25 adapter. Adapts a GM SM420 4 speed with a case length of 10.5 to a Dana 300 23 spline. From 1980-86 and will also adapt the same transmission to a NP231 transfer case flush 23 spline from 1987-04 that originally had a 999, 904 or a NV3550 transmission.
