this just started happening the other day anfter i downshifted into 2nd. now, when i drive and maybe do 3/4 throttle, and dont shift until 4k or so, iw will rattle at 3k. if i keep it there it keeps rattling. but if i just keep pushing the gas and dont stop at 3k, i still get some whining rattling going on, but not as much as if i kept it at 3k. also, when in 3rd, anything above 3k sounds like a have a supercharger. this was happening right after i installed my triax, but i figured it was because i removed that rubber gasket thing and could hear more sound. however, i have never heard the whiney rattle in 2nd. ideas?