when i first looked at the picture i thought, oh they are just sintering their gears from the powder mettalurgy state. but then i saw the gears had allready been machined!! so i had to check that off my list of possibilities, and then i figured ok, they are just heat treating them, again, NO! i was quite frusterated that i couldnt come up with the answer, that i just had to scroll down and read the rest of the posts

im dumb. Man i would've loved to been there to see that! thats awesome, and really good pic too!
btw, thats a heck of a lot of gears...
