A faulty motor and transmission mount bracket endangers your transmission assembly; as it will completely give up over time, causing your motor to fall off. The common warning signs that indicate you are in need of a replacement are when you hear a loud, echoing drone when you speed up; or when you start to feel a shake that becomes more severe with acceleration. Good thing is that aftermarket brackets are available for purchase, the only thing you need is the info on how to choose the right one for your vehicle. To narrow-down your choices, a list of things to consider is written below.
Where can you see the most obvious sign of damage? Do you need to replace the bracket on the driver side or the passenger side? Do you need it for the front or the rear end of your car? Is the damage coming from the upper or lower part of the bracket? Before purchasing a motor and transmission mount bracket, bear in mind that different brackets are manufactured for different needs. There is no such thing as a universal-fit for mount brackets.
The most common material used in manufacturing a mount bracket is cast iron. Its reliability to maintain its shape despite the pressure and stress it undergoes is satisfactory. However, it is not as corrosion-resistant compared to its competitors; the magnesium type, and the aluminum type.
The magnesium mount bracket is less prone to rust and stain compared to cast iron, it also comes for a lot lesser price. But if you are a frequent off-roader, the magnesium body type is not advisable for you. Its composition is more prone to deformation, thus, making off-road driving a dangerous activity.
If you are willing to splurge for a motor and transmission mount bracket, go for the aluminum body type. It is rust-proof and its capacity to withstand stress is superior. This one will outlive the cast iron and the magnesium bracket, but it will also break the bank.