Read the post about steering shaft gasket rotting out. Sure enough when I checked mine it was rotted also. Went to the dealer ordered the part cost $12.00. I just finished installing it. Only took about 15 min. If you use the steering wheel lock you don't have to worry about the wheel turning. Not that it will anyway. Bolts make it pretty fool proof when putting the shaft back together.
Thanks again to the people who share their info. on the T100s <img src="/forums/images/graemlins/kewl.gif" alt="" />

Fix it myself
1997 T100 SR5 4X4 190,000 miles
Ext.Cab 5 speed standard All original
Except: Bilstein shocks,Steering stabilizer
Aisin Hubs