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Unread 03-27-2014, 08:27 PM   #1
cdt540
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1983 CJ7 
 
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Dumb driveshaft question

I am in the process of putting everything back together after an engine rebuild and have a dumb question. I took a lot of pics of the engine, engine bay, wiring, etc. but did not take a pic of the drive shafts now I don't which ends face which. So for the front and rear shafts the end with the grease nipple goes towards the transfer case or the diffs?

Thanks

Chris
'83 CJ7 (258 4spd)
Austin TX

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Unread 03-27-2014, 08:29 PM   #2
RenoF250
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The end with the sliding yoke goes towards the transfer case.
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Unread 03-27-2014, 08:29 PM   #3
LumpyGrits
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IF-You are talk'n about the slip spline.
I run at the T'case, to keep from beat'em on rocks.
LG
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Unread 03-28-2014, 05:44 AM   #4
Mike Romain
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Mine are at the diff's. Might be pretty hard to grease if the front one it at the t-case above the skid plate or not?
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89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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Unread 03-28-2014, 06:41 AM   #5
Matt1981CJ7
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Pics always help.
exhaust2.jpg  
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Unread 03-31-2014, 01:55 PM   #6
cdt540
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My rear drive shaft appears to be stuck. You should be able to slide the slip yoke back and forth by hand correct? If so I guess I have to get the yoke out so I can clean it up and grease it. Nothing tricky here, the yoke should just slide out. There are no retaining c-clips or anything like that holding the slip you to the drive shaft?
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Unread 03-31-2014, 02:08 PM   #7
LumpyGrits
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Yes-by hand.
LG
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Unread 03-31-2014, 03:51 PM   #8
gmakra
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Matt when was the last time you detailed under your Jeep its very dirty!
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Unread 03-31-2014, 04:03 PM   #9
LumpyGrits
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Quote:
Originally Posted by gmakra View Post
Matt when was the last time you detailed under your Jeep its very dirty!
IF that is 'dirty'-I'm doomed..........
LG
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Unread 03-31-2014, 04:25 PM   #10
Mike Romain
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Quote:
Originally Posted by cdt540 View Post
My rear drive shaft appears to be stuck. You should be able to slide the slip yoke back and forth by hand correct? If so I guess I have to get the yoke out so I can clean it up and grease it. Nothing tricky here, the yoke should just slide out. There are no retaining c-clips or anything like that holding the slip you to the drive shaft?
I would grease it until the grease came out the hole and then work it. The fresh grease will clean it out as most will be expelled even it compresses.

I have never seen one fall apart so I believe something holds it in place. No gotta be sure because I have filled mine with grease and it didn't come apart, the grease squirted out the overflow hole.

If you do take it apart, be real sure it goes back together with the u- joints still in line. If you go off a spline, things will bind up nasty.
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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Unread 03-31-2014, 04:31 PM   #11
LumpyGrits
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I paint small alignment marks to be sure the shaft goes back together correctly.
LG
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Unread 03-31-2014, 07:20 PM   #12
82JeepCJ7
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If you run a DC, it looks like this in the rear. With the front, the slip yoke is up at the T-case end.

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Unread 03-31-2014, 08:01 PM   #13
skizriz
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I like to run mine with the slip joint down at the axle. After a losing battle with a rock, and this happening, the fix was to simply slide the yoke off at the slip joint, and slide a new yoke on. Literally a 15 minute repair job with any same sized yoke from the scrap pile.
Having it the other way would have required building an entire new drive shaft.







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Unread 04-03-2014, 11:58 AM   #14
Cutlass327
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Originally the slip yoke is at the top. Less chance of vibration that way, just don't ask me to explain - too hard to describe with centripetal forces, wear, etc..

As for it sliding off, there is a metal cap that holds the seal in place and has tabs that bend over the slip joint to hold it in place. The only thing holding them together is these parts. To lube them, the proper way is to grease until it comes out the little hole, then block the little hole with your finger and grease until it comes out the back of the slip joint. Good luck getting your finger in there though!
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Unread 04-04-2014, 02:09 PM   #15
OldCJ
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Quote:
Originally Posted by cdt540 View Post
My rear drive shaft appears to be stuck. You should be able to slide the slip yoke back and forth by hand correct? If so I guess I have to get the yoke out so I can clean it up and grease it. Nothing tricky here, the yoke should just slide out. There are no retaining c-clips or anything like that holding the slip you to the drive shaft?
Some of the original shafts have threaded collars that stop them from pulling apart. The one that Matt 1981 posted looks like that style.
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