Ya know...i got to thinking the other day. I was reading a write up on the valve body of our tranny. It mentioned that other than each "valve" for each "gear", there is a manual valve. The manual valve is for going from like P to R to D to etc. So im thinking now that it doesnt hurt the tranny to downshift/upshift. BUT...going from 4th to 3rd at an insane speed WILL hurt the engine. Like being at a comftarble rev and then downshifting and nearly redlining might not be a cool idea.

But yea I drive my car hard. Got a tranny cooler and now a tranny cooler water sprayer:). So i hope that helps.

Joseph