On a F350 diesel truck how do i know if it is the transmission or something else when it won't pull in none of the gears.?
have someone change gears, while not running, and make sure the
linkage from the gear lever, whether automatic or not, is moving
the linkage for the transmission itself. if the linkage is moving
on the trasmission, then its probably in the tranny. also make sure
the drive shaft is working (runs from the transmission to the rear
differential).