In Reply to: '64 4000 posted by Tim Daley(MI) on August 14, 2018 at 03:11:43:
Here is a video I found. Interesting things is someone comments that they have the exact tractor with 3 range transmission for 12 forward and 3 reverse speeds. It just could be this is correct and the one your looking at has that. Not listed in Tractor Data. com.