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Old 02-25-2014, 12:16 PM
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Front drive shaft Rear drive shaft 3 1/2 inch lift

So I had a big vibration coming from my rear drive shaft, took it off and found out my bearing exploded... took a piece out of my yoke, and there is wear on the drive shaft too.... Being that i have school or work everyday i'm driving in 4 high on just my front drive shaft (trying to go easy on it)(still driving freeway speeds)...
1. How long can I drive on just my front drive shaft? i know it'll wear out my tires and what not but how much strain is it putting on my drive line?

On that note, I have a 3 1/2 inch lift that I'm going to be installing this march, f/r adjustable track bar, fully adjustable control arms (all 8), new springs, shocks, bumpstops, and sway bar disconnects...

2.) what should i do? i was planning on dropping my tcase, but if i'm gonna spend money then i might as well get the SYE, but if i do that i'll be on just y front drive shaft at least another month or so.....

Advice?

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Old 02-25-2014, 12:23 PM
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Here's some pics, the drive shaft itself isn't warn too bad, just a 2 inch spot where i can tell the metal was rubbing on it... i get off work at 5 i'll be back then, thanks to any and all that can help! i'm a college kid so i'm jeepin on a budget
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Old 02-25-2014, 12:37 PM   #3
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My first opinion is that this can be very harsh for your driveline simply by the fact that you aren't using it as it was made to operate. Pulling the full weight with the front driveline has to be putting much more stress than normal on that thing especially if it's the D30. It wouldn't say it can't be done but if you have other options I wouldn't do it.

If you're planning on doing any off-roading I would go for the SYE kit definitely.
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Old 02-25-2014, 03:25 PM   #4
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Running in 4hi with no rear shaft doesn't hurt a thing. Go as long as you want. No different than a front wheel drive car.
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Old 02-25-2014, 07:25 PM
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Do i need a new front driveshaft when i lift it??
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Old 02-25-2014, 07:29 PM
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Will i need to replace my front drive shaft when i lift it?? and if im gonna get the SYE then what one should i get? there's a bunch out there but i was looking at Rusty's off road, SYE and tom woods drive shaft for $480
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Old 02-26-2014, 01:11 AM   #7
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No. You can just use OEM front drive shaft. All you need for sye is new rear. But get lift done first then measure the length of new drive shaft. Then call Tom Woods. Also get the Super short SYE kit. Not much more in price then standard sye kit.
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Old 02-26-2014, 04:17 AM   #8
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Put up a pic of the DS damage. They can fail once dented. They are built for twisting forces, don't hold up well to damage and bending from the side.
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Old 02-26-2014, 06:33 AM   #9
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Put up a pic of the DS damage. They can fail once dented. They are built for twisting forces, don't hold up well to damage and bending from the side.
Nevermind. Just saw the pic. Not sure if that yoke is worth salvaging, looks pretty gnarly where the u joint cap goes. Will need to balance for sure.
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Old 02-26-2014, 11:37 AM
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No. You can just use OEM front drive shaft. All you need for sye is new rear. But get lift done first then measure the length of new drive shaft. Then call Tom Woods. Also get the Super short SYE kit. Not much more in price then standard sye kit.
the short vs super short, whats the advantage? A longer drive shaft right? but what does that do?
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Old 02-26-2014, 12:08 PM   #11
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the short vs super short, whats the advantage? A longer drive shaft right? but what does that do?
Slightly less of an angle at the CV, since the driveshaft will be slightly longer.
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Old 02-26-2014, 12:29 PM   #12
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You get a smoother ride. Some people can tell differences other can't. Also lesser vibrations do to longer shaft.

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