Is Replacing the Subframe Considered a Major Overhaul?

2 Answers
OQuinn
07/28/25 6:18pm
Whether replacing the subframe counts as a major overhaul mainly depends on the extent of the vehicle's damage. If the subframe is slightly damaged but the chassis remains intact, and the repair shop recommends replacing the subframe, it does not qualify as a major overhaul. However, if the damage is severe due to an accident, affecting the chassis significantly, then it is considered a major overhaul. Here is more information about the subframe: 1. The subframe, also known as the auxiliary frame, is part of the vehicle's chassis structure. Its primary function is to connect and secure components of the suspension system. The body is directly connected to the subframe, which enhances the vehicle's structural strength, reduces the impact of suspension vibrations on the body, and improves ride comfort. It is a crucial component of the vehicle's chassis. 2. Replacing the subframe has minimal impact on the vehicle itself, as long as the new subframe is free of quality issues. If the subframe is damaged and replaced, it will not affect the vehicle's handling or driving stability.
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Reagan
08/12/25 12:03am
As an automotive repair enthusiast, I often focus on vehicle chassis issues. Replacing the subframe definitely counts as a major repair because it bears weight in the car's chassis structure, connecting the engine and suspension system. In actual operation, the vehicle needs to be completely lifted, and the engine and transmission must be removed before this component can be replaced. The entire process is complex and time-consuming, often taking an entire day. After the repair, a four-wheel alignment check is necessary to ensure everything is properly aligned; otherwise, the car may drive crookedly, posing numerous safety hazards. Many people think replacing a part is a simple task, but this involves the vehicle's core framework, commonly seen after accident repairs or severe rust, and the cost is also substantial, starting at several thousand yuan. Remember to inspect the rear suspension system to ensure safety.
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