I have a BX2751 quick hitch and a BX2753 mid pto kit for my BX2360 tractor. The manual though is for the shorter BX2752 which is the shorter pto kit for the BX1860 and so it says to set the shaft sticking back 5" from the hitch. I am just wondering how far back the BX2753 shaft is supposed to stick from the hitch?