That's them!
I believe it's a metric allen size 8 or 9mm.
They can sometimes be stuck. before you crank on them take a hammer and a punch and give each plug a decent hit with a hammer. Then try taking them out. Transmission capacity should be 1 quart (32oz). I try and get 1.5 quarts in mine by putting the floor jack up under the right hand side of the machine's frame rail, jacking it as high as I can before I start filling the trans up. or you could try putting it in through the vent tube. These transmissions need all the extra help they can get, and extra oil will help.
I believe it's a metric allen size 8 or 9mm.
They can sometimes be stuck. before you crank on them take a hammer and a punch and give each plug a decent hit with a hammer. Then try taking them out. Transmission capacity should be 1 quart (32oz). I try and get 1.5 quarts in mine by putting the floor jack up under the right hand side of the machine's frame rail, jacking it as high as I can before I start filling the trans up. or you could try putting it in through the vent tube. These transmissions need all the extra help they can get, and extra oil will help.