I Need the specs on this assembly please I am currently using a product similar and need to know if it will work. My company manufactures farm implement and have to fit on 6-6 ag wheel assembly commonly used in the USA Also is it possible to have a cross hole drilled in the axle I need a 1.75 axle. 3000 lb minimum capacity per hub. 6"-6" mounting holes. With 1 2" studs Thank you