Slip yoke location

Jump This · Feb 3, 2012

Any reason we need to keep the drive shaft slip yoke located at the axle side?
With my new drive shafts I'd like to keep the slip yoke a bit further up and out of the way.
BTW these are on the buggy and are not being taken out near their angle limit at full droop.

VAhasnoWAVES · Feb 3, 2012

the double cardan joint needs to be at the top.

even if the ears for the U joints top and bottom are the same style, the joints in the double cardan and the joint at the axle are different.

WB9YZU · Feb 3, 2012

Re: Slip joint location

Pretty much as above. I think the slip joint isn't further up the shaft to limit the amount of grease stored in the shaft (or squirted out the relief hole).

What kind of problem are you trying to solve?

VAhasnoWAVES · Feb 4, 2012

WB9YZU said:
What kind of problem are you trying to solve?

Jump This said:
With my new drive shafts I'd like to keep the slip yoke a bit further up and out of the way.

Jump This · Feb 4, 2012

This is the rear shaft without the double cardan.

VAhasnoWAVES · Feb 4, 2012

ummm...

then your slip shaft should be on the transfer case output, should it not?

"das confused."

Phil · Feb 4, 2012

The slip shaft is the part of the shaft that gets shorter and longer.

A double cardan joint is the funny thing with two universal joints and a centering ball.

He has a transfer case with fixed yokes. The driveshaft has a slip section to accommodate changes in length, but a double cardan joint is not needed.

If your driveshaft guy is willing to build a driveshaft with the slip shaft up at the transfer case instead of at the axle, I see no reason why it won't work.

kastein · Feb 4, 2012

Only reason I can think of to not do that is that the grease vent will be pointing more upward, which will trap water in there if you go through any.

Jump This · Feb 6, 2012

Phil said:
The slip shaft is the part of the shaft that gets shorter and longer.

A double cardan joint is the funny thing with two universal joints and a centering ball.

He has a transfer case with fixed yokes. The driveshaft has a slip section to accommodate changes in length, but a double cardan joint is not needed.

If your driveshaft guy is willing to build a driveshaft with the slip shaft up at the transfer case instead of at the axle, I see no reason why it won't work.

Since both ends are 1350 yokes I can reverse it without any problem. I was more curious to if there were any real reasons to keep the slip shaft near the axle end.

2stix · Feb 6, 2012

actually most slip yokes ARE up at the transfercase end. are you sure someone didnt install your driveshaft the other way, not knowing?

jeeperjohn · Feb 6, 2012

Jump This said:
Since both ends are 1350 yokes I can reverse it without any problem. I was more curious to if there were any real reasons to keep the slip shaft near the axle end.

I can't think of any reason you could not swap it. Just make sure water doesn't get trapped in it.

karstic · Feb 6, 2012

2stix said:
actually most slip yokes ARE up at the transfercase end. are you sure someone didnt install your driveshaft the other way, not knowing?

It's Rick what do you expect?

TRCM · Feb 7, 2012

2stix said:
actually most slip yokes ARE up at the transfercase end. are you sure someone didnt install your driveshaft the other way, not knowing?

Most stock slip joints in the driveshaft are up top as it keeps more mud/grit out of the slip joint splines, so less chance of the seal getting messed up.

My Dennys shaft on my old dodge had the slip joint at the bottom, because the double cardan was up top. It still worked fine tho.

Slip yoke location

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