Truebr1t,
Thanks so much for the detailed instructions! (I joined this group just to say thank you)
Using your instructions, I completed the repair, (including removing the motor), in just under an hour, and with only one fin clip left over!!
I found that my antenna rack (toothed cable) was broken in TWO pieces inside the motor housing. One was about 6" long, and the other about a 18" long. (If I hadn't done a second look inside the "circular plastic rack storage can" I would have missed the 6" piece hiding in the upper portion.)
I did the entire job last evening while recording American Idol, and then jumped through a zillion commercials when I was done. (Win, Win)
Total project cost: $52.00 with a genuine Lexus replacement mast.
Cheers....
Dave in Dallas
2000 RX 300 110K Miles - runs like new!!!