simple solution, take pics first so all of us can make sure you have all the parts identified correctly.

secondly when i took my 03 evo in for the synchro's to be replaced under warranty... they put GL 5 in my tranny and GL 4 in my tcase.... 100 miles later both were messed up... 10k later i had a brand new tranny and tcase... a lot of dealers haven't ever worked on an evo, especially in smaller towns... always take it back when warranty is in question.