1982 c10 trans type?
 

i have the service parts identification on my trucks options and i have an mxo transmission type im not sure which trans i have in my truck i think its a 700r4 but not sure can anyone tell me just to make sure truck is 100% original and this is the option it has says mxo 4-spd. auto trans.

It should indeed be a 700R-4. Those have a square pan.

thanks i will look i also heard there should be 16 bolts on the pan