• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Vibration Under Acceleration - Extension Housing Bushing?

G

garywcook

New member
Hey all.

New to the forum and to FWD GM's. I've mostly worked on Fords and Corvettes. I could use a little help. This needs to be a one day project. No time to disassemble and take a look.

I am trying to extend the life out of my daughter's 2001 3.8 Grand Prix GT with about 125K miles. I've already done some work. Replaced the Front wheel bearings. Brakes. Radiator. Fixed various leaks. Etc.

Recently I replaced both front axles. She drove it way past the point they should have been replaced, especially the passenger side. I don't know how it worked honestly. Incredible vibration. After replacement, I'm getting some vibration under acceleration. Nothing like before but it's still there slightly. I suspect the vibration from the bad axle damaged the bushing or bearing in the extension on the passenger side. Seems just a little wobbly. Sound like a reasonable assumption?

That raises a few questions. I see two types of extensions. One is named bearing type and the other bushing. I believe this one is a bushing type, correct?
Seems simple enough to replace the extension. Any gotchas? I've already mastered the axle replacement process. :)
 


^^This^^. Was thinking the same thing. If the engine and trans. mounts are shot they will throw off the angle of the axles causing a vibration. If they are the stock mounts check them out too.
 
The axles are new, not remanufactured. Not sure of the brand.

Thanks for the engine mount suggestion. I'll replace the upper engine mounts. They do look worn and the engine moves quite a bit front/rear when you accelerate. I had them out yesterday while replacing the radiator. Bottom looks fine. If that doesn't do it, then I'll replace the passenger side extension housing with a new bushing and seal.

Once this is resolved, on to replacing the steering rack. Not looking forward to that at all.
 


You must log in or register to reply here.
Back
Top