medusa 70 mm question

[strodedawg]

hello,
i just received my medusa 36-70-2000 last week and installed it in my revo. i haven't had a chance to run it and noticed the shaft sticks out of the rear endbell more than my 36-60-2000. i noticed this because i was going to mount my rcm heat sink on it. is this normal for this new size can or does it need to be returned and where? pics attached