A pair of brand-new lightweight aluminum rear wheel brake drums for 1984-1987 Buick Grand National, Turbo Regal, and 1987 GNX with stock rear drum brakes. These are for a stock 10 bolt rear end with 4 3/4 wheel bolt pattern
These aluminum brake drums feature enlarged cooling fins for better heat dissipation and weigh just over 10 pounds each. This means means you will reduce your unsprung weight by 5+ pounds per side (over 10 pounds of unsprung weight savings) compared to a typical cast iron brake drum.
There is another supplier that claims to have aluminum drums for this same application that weigh 6 lb 2 oz each for about $45 more. Because aluminum drums still require a STEEL friction surface, it would be virtually impossible for these drums to weigh less than 10 lbs each. This supplier should definitely buy a new scale and recalculate all of the rocket-scientist inertial mass calculations.
Note: This set of aluminum drums will ship in it's own box and cannot be combined with other items. Shipping may need to be re-calculated depending on your delivery location. Upon packing, if it is determined the shipping charge is higher than the cost, you will receive a partial refund. If upon packing, it is determined the shipping charge is lower than the cost, we will contact you regarding the adjusted shipping charges.
These brake drums are rotationally balanced, have maximum friction surface thickness and are ready to install.
They are sold in pairs and are recommended to be replaced in pairs so that you can maintain vehicle brake balance.