The goal here is to convert a 4L60E from a '94 Caprice from an electronic speedo to a cable speedo. From what I’ve found in my searching is a $400 kit that look like this:
I should note that the trans in the Caprice was recently rebuilt with a saucy torque convertor…so that is staying for sure. I’m just trying to save the stock speedometer gauge on this '55 Chevy that it’s going into, and would really prefer to keep the computer/electronics as unmolested as possible.