I know for a fact that the foxbody T5s had an aluminum throwout bearing retainer sleeve that would regularly wear. With the T45 it is made of steel and shouldn't ever wear enough to cause an issue, but it's still something to look at while the transmission is out. It looks like a metal pipe that surrounds the input shaft on the transmission. The only purpose is to give the throwout bearing something to ride on.What do you mean by sleeve on the transmission? Any pics or further explanation for what to look at?
Also -- are o2 sensors interchangeable from a V6 automatic SN95?