matt_ls1_z28

I own a 99 Z28 Camaro....the transmission is messin up in it and i have looked at buying a new one...but i have a freind who is a Certified GM Transmission Tech and told me he would do the labor of fixing it for little to nothing....i am tryin to find some parts to completely rebuild the transmission...it grinds going into 2nd and 3rd gear but will still go into the gears....it also kicks out when you have it in reverse and ur backing up...i belive what i need to do is replace all my synchronizers and bass bearings...the whole nine yards....i would like to use performance parts to make the transmission strongerr....but where can i find some parts at???Please anyone help me....Thanxs.