My rear end is Mopar 8 3/4" 489 case. Its 2.76 gearing no posi. One wheel is bleading oil, affecting the rear brake functionality.

So I need new set of the bearing. Anyone can recommend the set of everything I need? Is it interchangeable between different rear ends or somehow unique? So far I found this set

CHRYSLER CORP. 3683966 BEARING UNIT.

http://mibearings.com/index.php?main_page=product_info&cPath=3834_7237&products_id=118044

OR

NATIONAL-RA-301-Bearing-Differential-Kit

http://www.ebay.com/itm/NATIONAL-RA-301-...dd1&vxp=mtr

The car is 383cui 69 Polara convertible. Is it correct parts? Anyone can confirm? Thanks for help