that will depend on if you have clearance to the toe/floor board and if you can find rods that will work from the shift box arms to the trans arms, but I didn't think the 66 had that intermediate point, it was an earlier thing
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics