you need a shop manual - there's corporate and eaton 2spd rears - they both seem to be electric shift, but the eaton is said to be an option for 60 series

Bill


Moved over to the Passing Lane

"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