samert1
New Member
- Joined
- October 14, 2015
- Messages
- 8
- Reaction score
- 0
- Year, Model & Trim Level
- 2008 Explorer
I've searched the forums and I can't find this exact issue.
Working on a 2008 Explorer AWD. Front diff was replaced with a rebuilt unit due to carriers bearings going bad. On the new diff I have a high frequency, high speed (60 and above) vibration felt in the steering wheel only. Both front wheel hub bearings have been replaced with good SKF brand units. Both front CV axles have been replaced. New front brakes and rotors so everything is basically new up front and brake rotors tested for excessive runout. Removed front drive shaft and vibration is still there so it's isolated to the front end. It's not engine RPM related because in neutral at 60 mph vibration is still there. Noticed that gear oil is leaking from right axle tube seal. I made a case to the rebuilder that seal is leaking and vibration must be coming from rebuilt front diff. So they replaced with another rebuilt. Same problem, vibration and right axle tube seal leaking. Right Inner CV housing where it goes into the diff seems to have too much lateral play which is why seal is leaking and also causing the vibration. I think that rebuilder did not replace the axle tube bearing on the right side causing these issues. It looks like this OEM bearing is actually a plastic bushing Ford P/N 6L2Z4B413B. However, it appears that aftermarket replacements are actually a roller bearing and not a plastic bushing.
Question I have is has anyone else had a vibration like I've explained and traced it to the excessive inner CV housing slop and if so has replacing the axle tube bearing solved the problem?
Also, can anyone confirm that the OEM bearing is actually a plastic bushing and the aftermarket replacements are roller bearings?
Working on a 2008 Explorer AWD. Front diff was replaced with a rebuilt unit due to carriers bearings going bad. On the new diff I have a high frequency, high speed (60 and above) vibration felt in the steering wheel only. Both front wheel hub bearings have been replaced with good SKF brand units. Both front CV axles have been replaced. New front brakes and rotors so everything is basically new up front and brake rotors tested for excessive runout. Removed front drive shaft and vibration is still there so it's isolated to the front end. It's not engine RPM related because in neutral at 60 mph vibration is still there. Noticed that gear oil is leaking from right axle tube seal. I made a case to the rebuilder that seal is leaking and vibration must be coming from rebuilt front diff. So they replaced with another rebuilt. Same problem, vibration and right axle tube seal leaking. Right Inner CV housing where it goes into the diff seems to have too much lateral play which is why seal is leaking and also causing the vibration. I think that rebuilder did not replace the axle tube bearing on the right side causing these issues. It looks like this OEM bearing is actually a plastic bushing Ford P/N 6L2Z4B413B. However, it appears that aftermarket replacements are actually a roller bearing and not a plastic bushing.
Question I have is has anyone else had a vibration like I've explained and traced it to the excessive inner CV housing slop and if so has replacing the axle tube bearing solved the problem?
Also, can anyone confirm that the OEM bearing is actually a plastic bushing and the aftermarket replacements are roller bearings?