Does a slightly deformed subframe need to be replaced?
1 Answers
Minor deformation of the subframe has little impact and replacement is not recommended. Below is relevant information about the subframe: The subframe, also known as the auxiliary frame, refers to the bracket that supports the front and rear axles and suspension. It connects the axles and suspension to the "main frame," and after installation, it helps isolate vibrations and noise, reducing their direct transmission into the cabin. A subframe assembly includes the subframe and connecting brackets. The connecting brackets have a top surface and side surfaces. The top surface of the connecting bracket is attached below the subframe support points, while the side surfaces are connected to the inner side of the side flanges of the frame longitudinal beams. By positioning the connecting brackets on the side flanges of the frame longitudinal beams, the assembly avoids the upper flanges of the frame longitudinal beams, which bear the highest stress. This prevents stress concentration from causing cracks in the rivet holes, significantly improving vehicle safety.