Don't even worry about the timing belt... The recommend replacement at the stealership is at 90K... t-belt, water pump,
might as well replace the following items: drive belts, t-belt tensioner pulley, idler pulley, t-stat, camshaft seals, crankseal..
and BTW the belts can last over 100k... with no problems...
Ask me how i know... I work for Lexus, and i'm a certified techican
i've seen older es300 "V6", ls400 "V8" with over 140k on the timing belt, but the belt was so cracked it was about it break...
Anyways my runner has tokico Trek-masters p front and bilsteins in the rear, and lifted with the Rev-tech kit, hehe, my runner handles like my bmw's....
Doug
97 T4R lifted and JAOS'd