How do you keep the replacement mast from falling off lmotor keeps running?
If you still have the old mast, compare the length of the with
the new mast. If the old one is a lot shorter (the cable), it's
possible that it broke off and the piece is still inside the spool.
You have to remove it by removing the whole antenna assembly,
remove the spool cover (3 screws) and remove the broken off piece.
Replace the cover and put the assembly back. (You might want to put
some fresh all purpose grease to have a smooth operation)... *With
the ignition in ACC position and unit set to radio, the motor
should run and turns off after couple of seconds.....Take the new
mast, insert the cable thru with the gears facing the rear of the
vehicle, get somebody to turn the key to off position and push the
cable in until the sprocket catches it and retracts the new mast
(make sure that the gear is still facing the rear of the car). Once
wound into the spool, install the antenna retaining nut even the
antenna is not fully retracted. Extend and retract the antenna few
times until the gears syncronizes and the antenna retracts
fully........