looseness between CV joint and drive shaft

[Jason]

While trying to track down a soft 'howling' noise that sounds like a bad wheel bearing, I noticed that with the car in the air if I rotated the drivers side rear wheel back and forth I would get a clunking noise from the outer CV joint. I ordered a new CV joint, but when I went to install it I discovered the noise isn't internal to the old CV joint, but is from a loose fit between the inner CV joint ring and the drive shaft. The new CV joint also fits loosely and makes a similar noise.

Is there a way to fix this, or do I need a new drive shaft? If a new drive shaft does anyone know of a source for just the bare drive shaft? And how much should I care? While driving the car I don't hear any strange noises other than the howling which I pretty sure is from the passenger side rear wheel bearing. At the moment I'm in the middle of removing the hub carrier to replace the bearing.

[DMC-81]

While trying to track down a soft 'howling' noise that sounds like a bad wheel bearing, I noticed that with the car in the air if I rotated the drivers side rear wheel back and forth I would get a clunking noise from the outer CV joint. I ordered a new CV joint, but when I went to install it I discovered the noise isn't internal to the old CV joint, but is from a loose fit between the inner CV joint ring and the drive shaft. The new CV joint also fits loosely and makes a similar noise.

Is there a way to fix this, or do I need a new drive shaft? If a new drive shaft does anyone know of a source for just the bare drive shaft? And how much should I care? While driving the car I don't hear any strange noises other than the howling which I pretty sure is from the passenger side rear wheel bearing. At the moment I'm in the middle of removing the hub carrier to replace the bearing.

Hi, when you say "ring" do you mean the snap ring, and does it look like the below:
http://dmctalk.org/attachment.php?attachmentid=49345&d=1488940149

Any pictures would be helpful.

[Jason]

Hi, when you say "ring" do you mean the snap ring, and does it look like the below:
http://dmctalk.org/attachment.php?attachmentid=49345&d=1488940149

Any pictures would be helpful.

No.

I mean the splines on the center part of the CV joint. The fit between the hole in the center of the CV joint and the drive shaft is loose. If you hold the center of the CV joint still, you can still rotate the drive shaft back and forth a bit.

[DMC-81]

No.

I mean the splines on the center part of the CV joint. The fit between the hole in the center of the CV joint and the drive shaft is loose. If you hold the center of the CV joint still, you can still rotate the drive shaft back and forth a bit.

Oh. Yes, they should be tight.

[dn010]

If a new drive shaft does anyone know of a source for just the bare drive shaft?

I have a drive shaft without CV joints. If it comes down to the point you need a replacement, PM me.

[DMCMW Dave]

Oh. Yes, they should be tight.

I wouldn't say "tight" but there should be absolutely no slop in that fit at all. It should slide onto the axle effortlessly.

[Jason]

I wouldn't say "tight" but there should be absolutely no slop in that fit at all. It should slide onto the axle effortlessly.

All of the ones on the car seem to have a tiny bit of slop, with the one in question having noticeably more.

The drives shafts have 230K+ miles on them, with a few CV joint replacements along the way.

[DMCMW Dave]

All of the ones on the car seem to have a tiny bit of slop, with the one in question having noticeably more.

The drives shafts have 230K+ miles on them, with a few CV joint replacements along the way.

That's pretty impressive and I'm not surprised that they are showing wear. Other than Hollers' that probably one of the highest mile cars I've heard of. You should feel pretty safe buying a couple of used axle shafts, even used CV joints, since very few will have high mileage on them.

[Bitsyncmaster]

I don't think it's normal that splined contact moves much. The ball joints are what move when the distance changes. Is it normal high milage ones wear?

[DMC-81]

I wouldn't say "tight" but there should be absolutely no slop in that fit at all. It should slide onto the axle effortlessly.

Yes, what Dave said. :)

[Jason]

Does anyone have mechanical drawings of the bare drive shaft without CV joints? If can come up with a CAD model I can probably have one made.

[dn010]

You'd rather go through all that trouble than buy a used drive shaft?

[Jason]

You'd rather go through all that trouble than buy a used drive shaft?

It's more fun that way. :)

http://dmctalk.org/showthread.php?10528-left-front-door-hinge&p=156032&viewfull=1#post156032
http://dmctalk.org/showthread.php?9137-3D-Printing-and-Your-Delorean&p=203072&viewfull=1#post203072

I don't have good enough equipment to make a drive shaft, but on occasion I can get a part or two DMLS printed for free.

[dn010]

Ah, I see. Well if all else fails just drop me a PM, mine is just collecting dust in the garage.

[David T]

More than likely it is a combination of wear in the hub AND the shaft splines. You may have to replace both the hubs AND the half shafts.

[Jason]

More than likely it is a combination of wear in the hub AND the shaft splines. You may have to replace both the hubs AND the half shafts.

The hubs seem good, except for the passenger side wheel bearing.

[David T]

The only way to know for sure how good the hubs are is to fit a new half shaft into the hub's splines and see if there is any looseness. In fact, the half shafts could be OK and the bubs are worn.