The subframe serves as a structural support component for your vehicle. It carries important car parts such as the suspension, exhaust sytem and the engine. To provide a solid support, the subframe distributes the weight of supported components to several pressure points wherein bushings are installed. The bushings function as buffers to protect the subframe from the damage of daily wear and tear. If you notice that your bushings are worn out, it is probably time to buy replacement parts and let the mechanic replace it for you. We wouldn't want you to make uninformed choices, so here's a short guide to help you choose the right subframe bushing for your car.
Aluminum Subframe Bushing
If you want a long-lasting replacement, aluminum subframe bushings are perfect for you. Aluminum subframe bushings last the longest as it is made of sturdy aluminum alloy that effectively protects the subframe from incoming impact and vibration. The only downside to aluminum subframe bushing is that it appears to be inefficient in absorbing vibration. Because of this, you might feel a little discomfort due to unfiltered vibrations and impacts while driving. The driver can experience harsh nudges whenever crossing road bumps or driving on rough roads.
Rubber Subframe Bushing
If comfort is what you need, rubber subframe bushings guarantee the best handling due to its ability to absorb vibration and impact well. Rubber subframe bushings are effective shock absorbers because of its visco-elastic character. Harsh impacts that reach rubber subframe bushings are buffered and absorbed through its ability to reduce G levels. Other rubber-based variations are also available such as polyurethane subframe bushings or others made of highly-damped and polymeric solid materials. Rubber-based subframe bushings are standard factory components of most cars. Other polymeric variations are mostly used for race cars that need higher resistance to vibration and road impact.