Could be. I was just a dumb college kid putting stuff together. I think the 180 or 018 or whatever had the quick tension option then also. We only had the plastic cassed saws. We also had husky. I hatted putting those together because of the dumb outboard clutch.Nope. Maybe the one with the dumb easy-tensioner did. Wasnt it the 017 and 018 back then?