The 460 motor is bolted on the utility in the video I did and it's been raining all day here but I weighed the 2 different motors before I put the 460 on and the difference was 500 grams but i don't trust that as completely accurate as I don't know how much the castings can change between different PT's ,the bigger boss is 50 mm in diameter and about 33 mm long the standard boss is 39mm in diameter and about 33 mm long , I would say 300 grams to 500 grams should do or just machine up a steel bush so it's the same size as my measurements or I may be able to find another on a motor tomorrow and remove it to get the weight.
