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Old 01-29-2017, 09:27 PM
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Rear suspension help

I've got 3 things I need your guys help with. 1) how does my opinion angle look? My dad says that it should come up just a hair.

2) I am have trouble bolting the DC shaft to the rear of my transfer case. The bolt is too long and the head won't clear the cast of the sye. I've tried using the bolts teraflex supplied and the ones from Adams shaft and nothing works. I've tried rotating the yoke and even watching videos of installing and nobody has this issue?

3) long story short my rear sway bar links were different lenghts so I ordered the Rubicon Express links but the bushing requires thicker bolts. Can I press my old bushings out and swap them so I don't have to drill out the axle and frame ends?

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Old 01-30-2017, 12:34 AM   #2
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Looks like it could come down a hair to me, take an angle finder to it to make sure the two match (give or take a degree). Make sure the weight is all on the ground.

Off the top of my head, I think my bolts are reverse of yours...cant quite remember though. they should go thru the shaft first, then into the yoke.

Not sure why you wouldnt be able to unless the new links have a different bushing size vs your stock ones.

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Old 01-30-2017, 06:39 AM   #3
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1) Looks like the pinion angle should come down a bit.
2) As Tworley said, they may be reverse, check where the threads are or call Teraflex and get their answer.
3) As long as the outside diameter of the factory bushings are the same as the RE links, yes you can use them.
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Old 01-30-2017, 09:18 AM
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So upon further research I was supposed to put the driveshaft bolts in prior to torquing the yoke down. This was my mistake as I followed the YouTube video instead of my instructions. I guess they changed the yokes from when the video came out to when I got mine because I followed the video to a T. Regarding the sway bar links, I wasn't sure if the whole link was a wearable item and had to be replaced or if the bushings just pressed out. Thanks gents!
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Old 01-30-2017, 09:31 AM   #5
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This maybe a stupid question, with the SYE kit installed, I was under the impression that the pinion angle could be off and still be ok

I just ordered a sye kit for the purpose of getting rid of my 1" TC drop
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Old 01-30-2017, 09:59 AM   #6
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This maybe a stupid question, with the SYE kit installed, I was under the impression that the pinion angle could be off and still be ok

I just ordered a sye kit for the purpose of getting rid of my 1" TC drop
A stock Jeep runs a single cardan driveshaft in the rear which means there is 1 u-joint at each end. To have vibration free driving both the transfer case side and pinion side have to be at the same angle. Also, the driveshaft has to be within a certain angle in relation to the TC/pinion angle otherwise you will get excessive wear/possible vibes.

When you lift the Jeep enough the only way to achieve true vibe free driving is by using a SYE and a double cardan driveshaft. A double cardan drive shaft will have 2 u-joints at the TC side and 1 at the pinion. This setup is ideal because the double cardan joint can handle a larger angle because it splits the load. So say your driveshaft comes out of the TC at 15°, then the double cardan will split the load and it will effectively be operating at 7.5° each. To keep these vibes to a minimum the pinion side needs to match the driveshaft angle.

Also, in terms of you running a SYE... You will need a new driveshaft or to get yours lengthened and add an inline yoke or whatever it is called like the double cardan driveshafts has. Also, you will need adjustable upper control arms to adjust your pinion angle for vibe free driving.
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Old 01-30-2017, 11:32 AM   #7
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Thanks for the info,

If I just put in the SYE & CV driveline, I should be able to remove the 1 Inch TC drop. Right?
Will I even have to deal with rear upper & lower control arms?
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Old 01-30-2017, 11:40 AM
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You can remove the tcase drop but you will need adjustable rear upper arms at minimum
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Old 01-30-2017, 01:49 PM   #9
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Thanks for the info,

If I just put in the SYE & CV driveline, I should be able to remove the 1 Inch TC drop. Right?
Will I even have to deal with rear upper & lower control arms?
Yes, you will be able to remove the TC drop. The adjustable rear uppers are mandatory so that you can adjust your pinion angle. If you don't do that you'll have vibes.
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Old 01-30-2017, 02:03 PM   #10
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Dlee, this would be a good article for you to read. It should help explain.

Tom Wood's Custom Drive Shafts - Driveline 101
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Old 02-08-2017, 09:15 AM
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Does anybody have any tips on removing the rear sway bar link bushings?
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Old 02-08-2017, 11:12 AM   #12
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Quote:
Originally Posted by TheTank39 View Post
So upon further research I was supposed to put the driveshaft bolts in prior to torquing the yoke down. This was my mistake as I followed the YouTube video instead of my instructions. I guess they changed the yokes from when the video came out to when I got mine because I followed the video to a T. Regarding the sway bar links, I wasn't sure if the whole link was a wearable item and had to be replaced or if the bushings just pressed out. Thanks gents!
That is a terrible design. So you have to remove the yoke to change bolts?? What brand of sye is that?
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Old 02-08-2017, 11:49 AM
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That is a terrible design. So you have to remove the yoke to change bolts?? What brand of sye is that?
Teraflex extreme short sye. Definitely not the best design for sure.
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Old 02-08-2017, 12:42 PM   #14
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I have the same SYE and yes you have to install the bolts before you put on the yoke. There is an article from STU that explains setting your pinion angle that is good. I would buy your self an angle gauge and read that article. I adjust my arms so the angle is exactly the same and I have no vibrations.
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Old 02-08-2017, 01:34 PM   #15
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I would buy your self an angle gauge...
I didn't realize this until someone brought it up, but you can download plenty of apps that will utilize your smartphone as an angle finder. So if you have a smartphone you can save yourself a few bucks!
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Old 02-08-2017, 02:50 PM   #16
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I didn't realize this until someone brought it up, but you can download plenty of apps that will utilize your smartphone as an angle finder. So if you have a smartphone you can save yourself a few bucks!
If you have an iPhone, go to the compass app and swipe from right to left. There you will find a digital level.
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Old 02-08-2017, 03:50 PM   #17
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If you have an iPhone, go to the compass app and swipe from right to left. There you will find a digital level.
This is a decent option but to my knowledge it only outputs whole numbers. I downloaded a free angle finder app on my iPhone that gives you the decimal readout.

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