LC 100 Electric radio aerial

Not sure about the Yota spares, but my Patrol broke the mast, and I was able to buy just the replacement mast, with flex nylon shaft inside it, with a rack on one end. Was about $80, compared with a few hundred dollars for the whole assembly.
A ripoff, but only way to fix it properly.
Gerry

The procedure to install it is dead easy but you need a second set of hands.

1. you remove the chrome retaining nut off the top of the mast
2. switch radio on to extend the mast (this needs a second set of hands)
3. hold the mast fully extended and ask helper to turn off the radio - you just prevent it from retracting. Eventually the motor stops trying.
4. Have helper turn on radio and the mast will be expelled from the housing
5. insert the new cable in with the serrations facing the rear of the vehicle. Feed the cable until resistance is felt.
6. Have helper turn off the radio which will start the retraction of the new aerial. You might need to twist the cable slightly left or right to get it to grip the serrations.
7. As the cable retracts put the aerial mast into the hole and see that it retracts properly
8. put back on the retaining nut.
9. Have a beer with your mate.

CHeers
Andrew.

There is a few factory varients, and the aftermarket masts only fit one (Areopro brand).
I got Toyota to replace my mast, they fitted for free, and only a little bit more than the aftermaket one that didn't fit.

Paul

I've had to replace two masts and did it by removing the wheel arch cover and unbolting the whole aerial assembly. Unfortunately the second time I found the aerial base bent as well so bought a cheap rubber replacement aerial. I've still got the good replacement mast I didn't use.

I replaced my mast not long ago and yes I had to take off the plastic inner guard and remove the whole antenna. Once out I opened it up as the broken part remained inside, then it was a very simple operation once reassembled and as others have mentioned just needed to feed the new plastic section into the hole and operate the radio. Easy and painless.
Cheers