What engine and transmission do you have? If you have a 4-speed bolted to a V6, the parts house could have given you a clutch assembly for a 4-cylinder. It's a little smaller in it's surface area. If you have an Isuzu transmission bolted to a V6, same thing. An assembly for an Isuzu transmission also employs a small clutch disk.
flywheel was scuffed it is a 3.4 with Isuzu 5 speed i got the v6 clutch with 4cyl throw out yesterday i was driving it and is started acting a lot more normal so im guessing it was a little oil on it and i also re bleed the system a lot and that also helped i used the gravity bleed i had read about on here thank you for the reply's and help