Thanks for the reply Bob.. this seal has no open side. It is enclosed on both sides. one one side however, there is a raised ring closest to the shaft. I know I should be able to look at the rubber lip inside and tell that way but I just cant make it out. I'm trying to post a urlhttp://www.ebay.com/itm/New-Massey-Ferguson-PTO-Seal-1077452m1-195506m1-/181218572930
I think it worked..