i have an 06 4wd 3500, what yr did they change the front wheel bearings i bought some from a guy and they don't fit i want to resell them but need to know the yr they changed. bolt pattern is 4 5\8 approx on the ones i bought and 4"on mine any insight will be helpful

 

Try rockauto.com for the applications. I thought all the 3rd gens were the same, whadda' I know?

 

Maybe from a 2nd gen with a Dana?