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post #1 of (permalink) Old 04-20-2003, 05:49 PM Thread Starter
 
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Front Driveshafts?

Anyone know anything about YJ front driveshafts?

I broked mine pulling someone yesterday, and although it looks like I'll just get one from a yard, I was thinking of just fixing this?

My question is, does the shaft rotate when I'm in 2wd.

Cause if so, then balancing it is an issue.. if not, I'm just going to cut the ears off the old one.. stick a rod inside the tube, and weld away... or sleve it..

that should prevent it from pretzel tearing like last time...
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post #2 of (permalink) Old 04-20-2003, 06:14 PM
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Re: Front Driveshafts?

</font><blockquote><font class="small">In reply to:</font><hr />
My question is, does the shaft rotate when I'm in 2wd.

Cause if so, then balancing it is an issue.. if not, I'm just going to cut the ears off the old one.. stick a rod inside the tube, and weld away... or sleve it..

that should prevent it from pretzel tearing like last time...

[/ QUOTE ]1. Yes it does, the drive actuates at the axle.
2. Rotational balance will be an issue,
3. It'll rattle the fillings outta your head,
4. Destroy itself and fling itself at the nearest Mercedes Benz.
5. I've never learned how to do this repair right in the backyard,
6. Because I don't have the tools to rotational balance the finished shaft.
7. That doesn't mean it can't be done,
8. I just means I don't know how....
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post #3 of (permalink) Old 04-20-2003, 06:31 PM Thread Starter
 
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Re: Front Driveshafts?

Thanks Leve..

That's exactly what I wanted to know.

I'm going to see if I can find a replacment shaft, otherwise someone has already quoted me $100 to rebuild this one.. but before I do that, I'll take it to a loacal non-auto welding place and see if they have a machine to balance it on.. if so.. then maybe I can get them to rebuild it better then Chrysler spec for the same or cheaper.
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post #4 of (permalink) Old 04-20-2003, 06:42 PM
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Re: Front Driveshafts?

This is how we do them
Mark how the ears were positioned
Cut the old tube off
Cut a new one to fit
Tap the ends back in place making sure to line them up as you took them off
Weld it back up
Install and testdrive it

You win some, you lose some. At worst it will vibrate and you will have to take it and have it balanced. It's not thet much money. And it's a heck of a lot cheaper than buying a new one or paying someone else the labor for the job than can be done by anyone with a few tools. (ie welder)
Try it. Most shafts we have built worked fine with no "bad vibes". [img]images/graemlins/grin.gif[/img]
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post #5 of (permalink) Old 04-20-2003, 06:50 PM Thread Starter
 
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Re: Front Driveshafts?

Mine had weights welded to it..(as a sidenote)

My worst nightmare is being caught with 2wd like I was... but somewhere in the middle of the trail.. fortunately.. my bad luck came at the end of a trail.. with one small obsicle left.

What kind of tube and welding is involved..
I've got a small welder and can lay a pretty solid bead.. (made my tire carrier.. with a 33/12.5" tire, and steel 15/8" rim.. it weighs more then I care to ever lift again.. and I welded the tirecarrier/bumper to c-channel that bolted to the rear.. and haven't had a problem with that.. (have hada problem with the 1" pin that I'm using as a hinge coming loose.)

you think I can weld it.. I'm up for the job..

what do I do about the slip yolk? I assume the tube is attached to the yolk and the ears on one end?
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post #6 of (permalink) Old 04-20-2003, 06:56 PM
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Re: Front Driveshafts?

1. Did ya see THIS?
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post #7 of (permalink) Old 04-20-2003, 09:15 PM Thread Starter
 
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Re: Front Driveshafts?

Alrighty.. here are some pictures of my broken shaft..
(driveshaft the other one is fine perverts)


Anyone care to tell me exactly how this works... (fixing it)

I'll prolly fix it.. test it.. and if the vibes are bad, I'll see about purchasing a new one and setting this one up as a spare ( can never have enough spares)

Thnx for any info.

I can't go wider because of clearance.. but what about...

cutting it just past the slip yolk.. about where the weights are on both ends.. and putting in a nice peice of rod.. then welding it like that?
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File Type: jpg 1083341-Picture 353small.jpg (73.1 KB, 35 views)
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post #8 of (permalink) Old 04-20-2003, 09:17 PM Thread Starter
 
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Re: Front Driveshafts?

nother




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post #9 of (permalink) Old 04-20-2003, 10:55 PM
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Re: Front Driveshafts?

</font><blockquote><font class="small">In reply to:</font><hr />
1. Yes it does, the drive actuates at the axle.
2. Rotational balance will be an issue,
3. It'll rattle the fillings outta your head,
4. Destroy itself and fling itself at the nearest Mercedes Benz.
5. I've never learned how to do this repair right in the backyard,
6. Because I don't have the tools to rotational balance the finished shaft.
7. That doesn't mean it can't be done,
8. I just means I don't know how....

[/ QUOTE ]

Actually, the YJ shaft shouldn't rotate.
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post #10 of (permalink) Old 04-20-2003, 11:35 PM Thread Starter
 
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Re: Front Driveshafts?

I'm sure it does..

The vacume shift motor disengages the right hub/shaft.
meaning the left hub drives the left shaft and the dif.

which in turn drives the driveshaft.
atleast that's what I thought.the driveshaft is freewheeling on the tcase end though...
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