For those prices you can have a 14 bolt with modern (available) brakes.
I’d guess a fair price for the old Eaton with a generally undesirable ratio is $100-150. If 4.10 ratio add some to that.
I have 4.10 in my 1 ton and use it as a truck frequently, in the hills and mountains around here it is not to fast of a ratio, I sure don’t wish for anything slower like 4.56.
