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Unread 08-18-2011, 07:24 AM   #1
UZI4U
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Drive shaft question.

I'm trying to avoid doing a slip yoke eliminator on my transfer case out of laziness. I have a '93 with a ~2-3" shackle lift and the slip yoke is out of the transfer case about 0.75". Would I have any problems with extending the driveshaft to put the yoke where it needs to be? The only other plans I have are a 1" body lift and that won't affect this. Thanks!

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Unread 08-18-2011, 07:41 AM   #2
Jax89Jeeper
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You would put just as much, if not more time and effort into lengthening the driveshaft as you would installing an SYE. The easiest thing to do, would be a t- case drop. On a side note, 2-3" lift shackles are a bad idea. That would have your shackles at 8-10" long which will hang up on everything offroad and will over stress your springs.... They'll eventually invert the arch. IMO, Save up some cash and get a real suspension lift and go with an SYE.
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Unread 08-18-2011, 07:45 AM   #3
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Quote:
Originally Posted by Jax89Jeeper View Post
You would put just as much, if not more time and effort into lengthening the driveshaft as you would installing an SYE. The easiest thing to do, would be a t- case drop. On a side note, 2-3" lift shackles are a bad idea. That would have your shackles at 8-10" long which will hang up on everything offroad and will over stress your springs.... They'll eventually invert the arch. IMO, Save up some cash and get a real suspension lift and go with an SYE.
This.
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Unread 08-18-2011, 07:48 AM   #4
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Quote:
Originally Posted by Jax89Jeeper View Post
You would put just as much, if not more time and effort into lengthening the driveshaft as you would installing an SYE. The easiest thing to do, would be a t- case drop. On a side note, 2-3" lift shackles are a bad idea. That would have your shackles at 8-10" long which will hang up on everything offroad and will over stress your springs.... They'll eventually invert the arch. IMO, Save up some cash and get a real suspension lift and go with an SYE.
Agreed. ^^^

On the other hand, I ran 4.5" of lift with the stock driveshaft and a transfer case drop, so your application will work without much tweaking.
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Unread 08-18-2011, 08:15 AM   #5
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Hey guys, if I am ready his post correctly; is he saying that his yoke slipped out an additional .75 inches from the stock position? If so, then he probably doesn't need to do anything except get rid of those long a$$ shackles and do a suspension lift.

Just doesn't seem like 2-3" of lift would pull the yoke completely out. Or maybe I am just off my rocker more than usual today.
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Unread 08-18-2011, 10:59 AM   #6
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Originally Posted by No-Doors View Post
Hey guys, if I am ready his post correctly; is he saying that his yoke slipped out an additional .75 inches from the stock position? If so, then he probably doesn't need to do anything except get rid of those long a$$ shackles and do a suspension lift.

Just doesn't seem like 2-3" of lift would pull the yoke completely out. Or maybe I am just off my rocker more than usual today.
4" of lift won't pull your slip yoke out unless you have a REALLY flexy rear end. Most YJ's don't.
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Unread 08-18-2011, 11:22 AM   #7
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4" of lift won't pull your slip yoke out unless you have a REALLY flexy rear end. Most YJ's don't.
Well, maybe I am not off my rocker after-all.
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Unread 08-18-2011, 11:53 AM   #8
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when i did a 3" lift on my 92 after shims and TC drop my driveshaft actually became pinched between the rear end and TC due to i aligned it too straight. had to angle the rear end down slightly and replace the motor mounts thats were old and the engine was sitting back towards the firewall about a 1/2 inch.
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Unread 08-18-2011, 05:19 PM   #9
UZI4U
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Thanks for the replies. I just bought this and the whole lifting thing is new to me. It already has the shackles and I'm wanting to leave it as is. The yoke is out of the TC about 0.75" as it is right now and, from what I've read, it can cause some vibration in the DL because of this. Funds are kind of tight now and I want to make sure nothing gets hosed running it like this. It would be faster and easier to have the DL lengthened to get the yoke back where it belongs.

I know, I should do it right, but it's not a priority at the moment.
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Unread 08-18-2011, 05:28 PM   #10
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I know, I should do it right, but it's not a priority at the moment.
Do it right once and avoid having to spend your money twice.
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Unread 08-18-2011, 06:17 PM   #11
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Originally Posted by UZI4U View Post
Thanks for the replies. I just bought this and the whole lifting thing is new to me. It already has the shackles and I'm wanting to leave it as is. The yoke is out of the TC about 0.75" as it is right now and, from what I've read, it can cause some vibration in the DL because of this. Funds are kind of tight now and I want to make sure nothing gets hosed running it like this. It would be faster and easier to have the DL lengthened to get the yoke back where it belongs.

I know, I should do it right, but it's not a priority at the moment.
I would say the real question is... "do you have vibes right now?" If not, then unless you're out doing crazy log jumps and such, or getting into extreme flex situations, then the chances of the yoke poping out is small. ALL slip yokes will move somewhat when a lift is done, but you should have enough to be ok, unless in case of the above. If you're concerned... do the TC drop for now. Save your $$ and get an HD SYE. It is one of the better mods you can do for a YJ. Money well spent!



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Unread 08-18-2011, 06:36 PM   #12
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Alright, dangit! I guess I'll convert the gun funds into Jeep funds. Thanks again, fellas!
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Unread 08-19-2011, 08:39 AM   #13
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Your slipyoke can easily be out of the transfer case 1". No issue if you don't have vibes.
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