i need some help, my new car is setup for pro am 934 rear mid boards, but its the 15bolt pattern not your average 12 like most on the market, and im not paying the 6000 us they want for the kit. 

i have found out that most of them all use the same bearing part numbers. i want to try and run the 15 spindle and then another manfactures setup for the rest. 

has anyone had this problem and how did you over come it. not really that keen on changing the mounting plates either. 

would anyone have a 934 hub assembly floating around i could borrow.  want to see what i can come up with.  bascially if it is a straight spindle swap or not being same bearing part numbers