The forward pump is shot or the throttle has a blown gasket
Put it into reverse when moving rapidly forward.
if it was automatic it had a torqueflite tranny and had 3 forward gears and a reverse and if stick shift you had either a 3 speed tranny (rare) or a 4 speed.
Make sure transmission fluid level is correct Bad transmission pump?
the forward gear clutch pack is worn out. the only solution is to get the transmission rebult.
Sounds like you have a busted linkage somewhere
If this is an automatic transmission, more than likely the transmission is on it's way to the junkyard. Usually failing transmissions lose reverse first, then the higher forward gears - last will be the lowest forward gears.
If you have an automatic transmission, it probably has a forward clutch/band problem.
Needs internal transmission repairs. Find a good shop.
reverse drum inside of trans is stripped out the fix is teardown unit and replace with abeast drum from transtar
The shifter. D is for drive which is forward and R is for reverse. N is for neutral. You have to have the breaks pressed down all the way in order to move out of park and into D or R.
Could be a pump problem or broken planetary. Regardless, the transmission will need to be disassembled.
The car might have an automatic cut off to either disengage the transmission or cut off the engine. Otherwise you will rip apart the transmission.