Re: 91 XJ: front driveshaft double-cardan lubrication
 

In living color, cool.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Steve wrote:
>
> http://maps.google.com/maps?q=1211+E...7440&t=k&hl=en
>
> Steve
> http://xjeep.dyndns.org

Re: 91 XJ: front driveshaft double-cardan lubrication
 

In living color, cool.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Steve wrote:
>
> http://maps.google.com/maps?q=1211+E...7440&t=k&hl=en
>
> Steve
> http://xjeep.dyndns.org

Re: 91 XJ: front driveshaft double-cardan lubrication
 

In living color, cool.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Steve wrote:
>
> http://maps.google.com/maps?q=1211+E...7440&t=k&hl=en
>
> Steve
> http://xjeep.dyndns.org

Re: 91 XJ: front driveshaft double-cardan lubrication
 

If the tcase was set to N or 2HI, you will be able to turn the front
driveshaft, but in 4HI or 4LO, the front will not turn because the rear will
have it locked up.

The double cardan is a kind of universal joint, it is not a ball joint.



"Doug" <pigdos@nospam.com> wrote in message
news:ergye.38952$J12.35933@newssvr14.news.prodigy. com...
> If I jack up both front tires of my cherokee, apply the parking brake and
> put the auto-trans in neutral and leave the xfer case in 4WD will I be
able
> to freely rotate the front driveshaft so I can get to all the zerk grease
> fittings?
>
> Also, what's the double cardan joint ball for? In looking at the exploded
> diagram of the double cardan joint in the front driveshaft (right next to
> the xfer case) there is a ball fitting that looks like its got a grease
> fitting. What I'm wondering is why you need this spring-ball at all. If
the
> spiders are handling all the load from transferring power from the
> driveshaft through the double cardan joint then what is the point of the
> ball that goes between the spider and the center yoke in the double cardan
> joint?
>
> --
> there is no .sig
>
>

Re: 91 XJ: front driveshaft double-cardan lubrication
 

If the tcase was set to N or 2HI, you will be able to turn the front
driveshaft, but in 4HI or 4LO, the front will not turn because the rear will
have it locked up.

The double cardan is a kind of universal joint, it is not a ball joint.



"Doug" <pigdos@nospam.com> wrote in message
news:ergye.38952$J12.35933@newssvr14.news.prodigy. com...
> If I jack up both front tires of my cherokee, apply the parking brake and
> put the auto-trans in neutral and leave the xfer case in 4WD will I be
able
> to freely rotate the front driveshaft so I can get to all the zerk grease
> fittings?
>
> Also, what's the double cardan joint ball for? In looking at the exploded
> diagram of the double cardan joint in the front driveshaft (right next to
> the xfer case) there is a ball fitting that looks like its got a grease
> fitting. What I'm wondering is why you need this spring-ball at all. If
the
> spiders are handling all the load from transferring power from the
> driveshaft through the double cardan joint then what is the point of the
> ball that goes between the spider and the center yoke in the double cardan
> joint?
>
> --
> there is no .sig
>
>

Re: 91 XJ: front driveshaft double-cardan lubrication
 

If the tcase was set to N or 2HI, you will be able to turn the front
driveshaft, but in 4HI or 4LO, the front will not turn because the rear will
have it locked up.

The double cardan is a kind of universal joint, it is not a ball joint.



"Doug" <pigdos@nospam.com> wrote in message
news:ergye.38952$J12.35933@newssvr14.news.prodigy. com...
> If I jack up both front tires of my cherokee, apply the parking brake and
> put the auto-trans in neutral and leave the xfer case in 4WD will I be
able
> to freely rotate the front driveshaft so I can get to all the zerk grease
> fittings?
>
> Also, what's the double cardan joint ball for? In looking at the exploded
> diagram of the double cardan joint in the front driveshaft (right next to
> the xfer case) there is a ball fitting that looks like its got a grease
> fitting. What I'm wondering is why you need this spring-ball at all. If
the
> spiders are handling all the load from transferring power from the
> driveshaft through the double cardan joint then what is the point of the
> ball that goes between the spider and the center yoke in the double cardan
> joint?
>
> --
> there is no .sig
>
>

Re: 91 XJ: front driveshaft double-cardan lubrication
 

If the tcase was set to N or 2HI, you will be able to turn the front
driveshaft, but in 4HI or 4LO, the front will not turn because the rear will
have it locked up.

The double cardan is a kind of universal joint, it is not a ball joint.



"Doug" <pigdos@nospam.com> wrote in message
news:ergye.38952$J12.35933@newssvr14.news.prodigy. com...
> If I jack up both front tires of my cherokee, apply the parking brake and
> put the auto-trans in neutral and leave the xfer case in 4WD will I be
able
> to freely rotate the front driveshaft so I can get to all the zerk grease
> fittings?
>
> Also, what's the double cardan joint ball for? In looking at the exploded
> diagram of the double cardan joint in the front driveshaft (right next to
> the xfer case) there is a ball fitting that looks like its got a grease
> fitting. What I'm wondering is why you need this spring-ball at all. If
the
> spiders are handling all the load from transferring power from the
> driveshaft through the double cardan joint then what is the point of the
> ball that goes between the spider and the center yoke in the double cardan
> joint?
>
> --
> there is no .sig
>
>

Re: 91 XJ: front driveshaft double-cardan lubrication
 

"Doug" <pigdos@nospam.com> wrote in message
news:M3Gye.1359$Tc6.42@newssvr13.news.prodigy.com. ..
> Bill, the thing is, I've never even been able to see that grease fitting
> (for the ball), no matter how much I rotate the front driveshaft. Does the
> ball and spring put pressure on the spider? Is this how it stops the
> double-cardan joint from wobbling?
>

Yes. The spring presses on the inside of that ball, and this keeps the
joints lined up.

Re: 91 XJ: front driveshaft double-cardan lubrication
 

"Doug" <pigdos@nospam.com> wrote in message
news:M3Gye.1359$Tc6.42@newssvr13.news.prodigy.com. ..
> Bill, the thing is, I've never even been able to see that grease fitting
> (for the ball), no matter how much I rotate the front driveshaft. Does the
> ball and spring put pressure on the spider? Is this how it stops the
> double-cardan joint from wobbling?
>

Yes. The spring presses on the inside of that ball, and this keeps the
joints lined up.

Re: 91 XJ: front driveshaft double-cardan lubrication
 

"Doug" <pigdos@nospam.com> wrote in message
news:M3Gye.1359$Tc6.42@newssvr13.news.prodigy.com. ..
> Bill, the thing is, I've never even been able to see that grease fitting
> (for the ball), no matter how much I rotate the front driveshaft. Does the
> ball and spring put pressure on the spider? Is this how it stops the
> double-cardan joint from wobbling?
>

Yes. The spring presses on the inside of that ball, and this keeps the
joints lined up.