mounting track control arm bushes
DID YOU KNOW: ADVICE FOR THE PROFESSIONAL
OVERVIEW
A long service life for any bush can only be achieved if it had been correctly installed on the control arm. A prerequisite is using the right tooling and the appropriate method to press the bush into the control arm body hole.
In addition, some bushes require specific radial and/or axial positioning to perform correctly once the vehicle is in operation. These bushes include dedicated markings to indicate the correct bush position. However, the markings are not always clearly visible.
A correct radial orientation is critical for slotted or hydro-elastic bushings. These must be fitted at a specific angle that allows them to operate correctly. Incorrect installation will be evident under load i.e., braking and acceleration.


A correct axial position is also critical as the right pressing depth will allow an easy installation of the reworked control arm onto the vehicle.


The typical approach to identify the correct positioning for the bush is:
- Note the position of the old bush prior to removing it from the control arm (add a mark, take a picture etc.)
- problem: the installer may forget to note the original position, or a worn bush might be so damaged that it is difficult to determine its position. - Look at the other side to see how the bush is fitted on the paired control arm
- problem: bush orientation is not always clearly visible in a control arm installed on the vehicle's subframe, and a mirror effect needs to be considered to correctly replicate the fitting on the opposite side.
HELP IS AT HAND
MOOG helps to ensure the correct fitment of the bush in the arm body hole by providing a fitted instruction, whenever it is needed. By following the instruction, installers can be confident of the right axial and radial positioning of the bush and of long-lasting performance for their customer.
The content contained in this article is for entertainment and informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content.

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