I've got close to 1k on my evo x now. I picked up some amosil tranny fluid to change from the crappy gl 3 to gl 4. Anyway. I drove it aggressive on the way home from the dealership (550 miles) now i kow there is bound to be metal bits and shaving from the gears and all bedding their self/seating in. I've been readying about T case failures and all. To be honest it's got me worried. should I go ahead and change out the rear diff and the t-case or is it way to early and the gears need to seat in more? I never did any real launches.. really just lauched the car twice but boggged down. I did runs from 2-4 gears though or would get on it in just one gear. hell it's hard not to after a tune.