OK..Here is what the seller is telling me;

The kit is a Patrick's 3:55. It is new in the box along with the the seals, bearings and bushing kit. He bought it for his 53 but never got around to it and is now willing to let it all go for half price. Seller said everything is still in boxes and he has the receipt to show date of purchse and exactly what he bought.

I called Patrick's. The only thing that I will need to buy is a different torque tube bushing. The 47.5 to 54 don't use the same bushing as my 46. The seal/bearings along with the gears are all the same from 41 to 54 1st.

And wow...I have never called Patrick's. Those guys are some very nice people. Patrick's told me they will send me instructions if I need them.

Looks like I am getting a set of 3:55's!