Under. I will be extending the aluminum floor forward to meet up with the air duct plate I already welded onto the bottom of the radiator bracket and rearward to the front cross tube of the subframe. I will have nearly a full length flat bottom - any little bit of aerodynamic improvement will help.![]()
Good news boys and girls! I took a chance and ordered a set of Malibu drum brake bearing hubs. They are 5X110 bolt pattern and have no ABS connectors and have a nice steel end cap. Guess what, they fit perfectly. The end cap is flush with the aluminum upright with a perfect tight fit to the center bore and bolt holes. The part number on bearing is HB612289, from Auto Shack.com, not sure how this translates to a GM part number.