AlbertD
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- Jun 18, 2016
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- Tucson, AZ
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- 2016 GT/PP
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- #1
Noticed clunking in the rear at low speeds (10-15mph) over rough patches of road so checked the rear suspension and noticed the driver side differential bushing to have significant damage. The car has 51k miles and over 25 hours of hard track time so I'm guessing the repetitive heat cycles from track abuse may have lead to the failure.
I searched online at Ford parts sites and it doesn't look like they sell the OEM bushing separately. I would have to buy the entire sub frame. Ugh...
I'm torn whether to replace with a poly or aluminum bushing. I'm leaning towards the aluminum option from BMR since the car is 80% track 20% street and NVH isn't necessarily top priority, although if I could avoid it that would be a plus. Poly would provide less NVH, but would it stand up to the track abuse (high heat) or will it eventually fail like the factory bushing did?
Anyone else had their bushing fail from repetitive track use and if so, what did you end up replacing them with? Happy with your decision?
Picture of the damaged differential bushing:
I searched online at Ford parts sites and it doesn't look like they sell the OEM bushing separately. I would have to buy the entire sub frame. Ugh...
I'm torn whether to replace with a poly or aluminum bushing. I'm leaning towards the aluminum option from BMR since the car is 80% track 20% street and NVH isn't necessarily top priority, although if I could avoid it that would be a plus. Poly would provide less NVH, but would it stand up to the track abuse (high heat) or will it eventually fail like the factory bushing did?
Anyone else had their bushing fail from repetitive track use and if so, what did you end up replacing them with? Happy with your decision?
Picture of the damaged differential bushing:
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