My chain came off and cracked the trans. case behind the front sprocket so I need to get the case off to replace it I have everything loose but can't get the front sprocket off I put it in gear and tried to turn the nut attached to the sprocket but it dosn't move am I missing something?

 

Nevermind I figured it out on my own i forgot those front sprockets are impacted on nothing my impact gun couldn't handle : )