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Unread 08-03-2010, 05:24 PM   #1
semprfimac
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LJ Slip Yoke...how far can it slip..oops!

How far can my LJ's slip yoke "slip" / how bad a situation, before I'm on my back and try'in to reconnect it ? or worse.....

I know i need an SYE & CV shaft but until the funding is available I still need to wheel,

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Unread 08-03-2010, 06:14 PM   #2
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There are many people out there with 4" lifts and still running the slip yoke. I have a 3.25" lift and never upgraded to a slip yoke and never plan on it. I have plenty of room let and have maxed out my rear articulation without any issues. Do you have a t-case drop?
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WANTED: SYE and cv shaft...good condition and good price. for a TJ with about 5-6" of lift.
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Unread 08-03-2010, 06:24 PM   #3
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I've had several 4" lifts and never got a SYE or had any problems.
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Unread 08-03-2010, 07:45 PM   #4
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Quote:
Originally Posted by AFjeepMan View Post
There are many people out there with 4" lifts and still running the slip yoke. I have a 3.25" lift and never upgraded to a slip yoke and never plan on it. I have plenty of room let and have maxed out my rear articulation without any issues. Do you have a t-case drop?
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Originally Posted by TheBoogieman View Post
I've had several 4" lifts and never got a SYE or had any problems.
And that's why I've found rear drive shafts with broken rear U joints on the trail. No Jeep, just the DS...
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Unread 08-03-2010, 08:05 PM   #5
AFjeepMan
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if the rear u-joint breaks as in shears into pieces then the rear driveshaft can fall out if it's not connected to the rear axle, but there are many 1000's of jeepers running the slip yoke with 3.5-4" of lift with absolutely no problems with the yoke slipping off.
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WANTED: SYE and cv shaft...good condition and good price. for a TJ with about 5-6" of lift.
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Unread 08-03-2010, 08:24 PM   #6
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Anyone running one of the EBay setups?

SLIP YOKE ELIMINATOR KIT PACKAGE SYE JEEP CV DRIVESHAFT: eBay Motors (item 320419836868 end time Aug-28-10 22:58:53 PDT)
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Unread 08-03-2010, 08:31 PM   #7
Knuckelhead
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Quote:
Originally Posted by AFjeepMan View Post
if the rear u-joint breaks as in shears into pieces then the rear driveshaft can fall out if it's not connected to the rear axle, but there are many 1000's of jeepers running the slip yoke with 3.5-4" of lift with absolutely no problems with the yoke slipping off.
When the slip yoke falls out, the drive shaft drops causing the rear U joint to fail. I've seen that many times. But, you have to go off road to experience that...
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Unread 08-03-2010, 11:18 PM   #8
semprfimac
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Sounds like a mixed bag...some do..some don't,

thanks Knuckelhead
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Unread 08-03-2010, 11:22 PM   #9
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Cheap insurance to just get the sye. Would suck to be in the middle of nowhere and find out the hard way.
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Unread 08-04-2010, 09:01 AM   #10
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I had a 4" lift with proper wheelbase on clayton long arms...thought i was fine...

At some point I managed to ever so slightly twist the spines on the output shaft probably because there was a lack of engagement at droop. The vibrations the DS can make when there is a locked up slip yoke is freakishly scary. Had to sledge hammer off the driveshaft from the output shaft and drove home 500 miles on the front DS. ...then came a new SYE.
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Unread 08-04-2010, 10:17 AM   #11
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Quote:
Originally Posted by bairy View Post
I had a 4" lift with proper wheelbase on clayton long arms...thought i was fine...

At some point I managed to ever so slightly twist the spines on the output shaft probably because there was a lack of engagement at droop. The vibrations the DS can make when there is a locked up slip yoke is freakishly scary. Had to sledge hammer off the driveshaft from the output shaft and drove home 500 miles on the front DS. ...then came a new SYE.
x2...i've managed to max my LJ's slip yoke out on 2.5" of lift with a tummy tuck. I could almost pull the shaft off with the shocks out and the axle at full droop. I finally installed a DC shaft this past weekend.
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Unread 08-04-2010, 06:09 PM   #12
Knuckelhead
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Quote:
Originally Posted by bairy View Post
I had a 4" lift with proper wheelbase on clayton long arms...thought i was fine...

At some point I managed to ever so slightly twist the spines on the output shaft probably because there was a lack of engagement at droop. The vibrations the DS can make when there is a locked up slip yoke is freakishly scary. Had to sledge hammer off the driveshaft from the output shaft and drove home 500 miles on the front DS. ...then came a new SYE.
Quote:
Originally Posted by Unlimited04 View Post
x2...i've managed to max my LJ's slip yoke out on 2.5" of lift with a tummy tuck. I could almost pull the shaft off with the shocks out and the axle at full droop. I finally installed a DC shaft this past weekend.
Experience speaks the truth for others in the learning stage.
Thanks for the input guys...
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Unread 08-04-2010, 08:54 PM   #13
semprfimac
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okay, SYE & CV shaft back to the top of the list....thanks guys
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