C2 vibration

[John S.]

my friend has a 66 coupe that has just had the back end underneath all replaced. new gas tank, springs,drive shaft,half shafts,trailing arms,rotors,calipers,lines,rear end,yoke..everything. Car now has a vibration starting at about 40..at 45 to 60 its worse lessening after that..It only happens while applying power. Pushing clutch in no vibration Down hill no vibration..Everything has been checked and rechecked still a vibration..help...

[John H.]

Re: C2 vibration

I'd look at the bushings and bolt where the diff nose bracket attaches to the frame crossmember, especially if poly bushings were used (they aren't the right thickness - too thin - and don't have the molded-in sleeve that isolates the bolt from metal contact with the bracket or frame).

[Wayne W.]

Re: C2 vibration

Also, lots of negative camber will cause vibration especially under acceleration.

[Larry L.]

Re: C2 vibration

Check U-Joints
Does it feel like a rolling vibration - If so there are two unthinkable things. A U-Joint is missing a rollers. Or worse yet you have a bad axel bearing. You should be able to remove drive shaft and rotate parts and feel the bad bearing.
Don't over look the rear bearing in the transmision. It simple and the first thing to check.

[Bill M.]

Re: C2 vibration

Check inside your rear brake drums you may have a broken return spring.
Bill

[Bill M.]

Re: C2 vibration

Check inside your rear brake drums you may have a broken return spring.
Bill