I'll just check around and see if the 1GFE uses the dual-mass flywheel like the 3SGE.
If you have a one-piece flywheel you can just buy a new clutch plate and pressure plate. Exedy will do that I think.
If you have a dual-mass you can do the same, but they are not interchangeable. That will be from Lexus only.
With either you can buy a lighter one-piece flywheel, new pressure plate & clutch plate and replace the worn unit. Jun flywheel I think it is, and Exedy for the rest or TRD.
OK, you should have a dual-mass, like the 3SGEs. See here-
http://z4.invisionfree.com/lexusaltezzaclu...opic=2151&st=50