Add it yourself...
Change Transmission Fluid Through Radiatorhttp://us.lexusownersclub.com/forums/index.php?showtopic=14728
Change Transmission Filter & Pan Gaskethttp://us.lexusownersclub.com/forums/index.php?showtopic=14716
Service a Automatic Transmission, Transmisison Filter, Trans Fluidhttp://www.2carpros.com/how_to/transmission_service.htm
Transmission Fluid Exchange/Flushhttp://free-auto-repair-advice.blogspot.com/2007/05/transmission-fluid-exchangeflushis-it.html
The Car Transmission Biblehttp://www.carbibles.com/transmission_bible.html
Gearbox Swappinghttp://www.autospeed.com/A_108912/cms/article.html
Differential Oilhttp://us.lexusownersclub.com/forums/index.php?showtopic=14715
change Lexus differential oilhttp://www.lextreme.com/differential.html
repair Lexus differential oil leakhttp://www.lextreme.com/differential-leak.html
Wheel Bolt Pattern & Offset Referencehttp://www.discountedwheelwarehouse.com/Vehicle_Bolt_Pattern_Reference.cfm
The Wheel and Tyre Bible Page 1 of 2http://www.carbibles.com/tyre_bible.html
Replacing Front Wheel Bearingshttp://autorepair.about.com/cs/doityourself/a/bl_wh_bearing1.htm
Full Alloy Wheel Refurbishment Guidehttp://www.imoc.co.uk/forums/kb.php?mode=article&k=95