automatic valve body vs. manual valve body

70aarcuda said

automatic valve body...put trans in drive...trans shifts itself from 1st to 2nd to 3rd...

manual valve body....put trans in 1st it stays in 1st until you move lever into second...then it stays in 2nd....until you move lever into 3rd......

Click to expand...

I couldn't figure it out at all. but then I came across an article that made it make ALOT better sense.
http://www.allpar.com/mopar/shift-kits.html

thanks 70 aarcuda..

so an automatic/manual valve body means that you can either choose to shift through the gears manually, or just place it in D and it'll do the shifting?