I realize this is an old thread, but anyone else that happens to have an issue, an issue initially similar to Herb’s, there is a company that will send you a refurbished “looking new” replacement OEM factory dash cluster complete... You just enter in your info like VIN#, Odometer Mileage, etc and they'll still it to you for $599 + tax of course, but since these clusters are a pain in the a** to find and aren't made really anymore and if you do find them they're like $1600-$1800 which is absurd; well usually unless you know a specialty shop/Toyota Dealer from Japan, then this is a cheaper option I thought I would share. Personally love my ‘04 Lexus LS430 Ultra, and would appreciate this info if I needed it and couldn't find even if this post is way old. **Couldnt ‘paste’ URL, so here's the website....
taninautoelelctronix.com
‘under 04-06 ucf30 Lexus LS430 gauge cluster’
You fellas take care,
P