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Old 05-09-2012, 01:13 AM   #1
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Do my driveline angle look right trying to get this right


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Old 05-09-2012, 06:04 AM   #2
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Based on the pic it appears okay. Are you getting vibs? Best would be to put an angle finder on it.

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Old 05-09-2012, 06:35 AM   #3
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Pics can be deceiving, but I would say you are off a bit and getting vibes. The t-case output and pinion yoke at the axle needs to be parallel. This is the typical setup and requirement of single ujoint applications



This is the typical setup for a CV or Double Cardan style shaft. The pinion yoke has ZERO DEGREE deflection from the driveshaft and the CV or double cardan joint takes up the angle at the t-case.



Read all about it on TW's site.....

Tom Wood's Custom Drive Shafts - Driveline 101
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Old 05-09-2012, 07:19 AM   #4
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I would also say it is a bit off. Your setup is closer to the correct angle for a CV type shaft.
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Old 05-09-2012, 12:15 PM   #5
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Ok cool now looking at that picture could I raise my t case up some more to get them parallel? I can take it up .5" I know it's a bad pic but would you think it would help?
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Old 05-09-2012, 12:31 PM   #6
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Quote:
Originally Posted by wavebacktothetj View Post
Ok cool now looking at that picture could I raise my t case up some more to get them parallel? I can take it up .5" I know it's a bad pic but would you think it would help?
read this:
http://www.wranglerforum.com/f5/how-...le-121998.html
and this:
What is a CV shaft and why do I want one? - JeepForum.com
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Old 05-09-2012, 02:30 PM   #7
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Your Jeep will let you know if it is not right. Getting vibes?
I agree with the above posts that with your stock type slip yoke driveshaft, your pinion angle is too high.
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Old 05-09-2012, 04:50 PM   #8
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Quote:
Originally Posted by wavebacktothetj View Post
Ok cool now looking at that picture could I raise my t case up some more to get them parallel? I can take it up .5" I know it's a bad pic but would you think it would help?
I would think you would want to lower the T-Case further.
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Old 05-09-2012, 04:56 PM   #9
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Mine is lifted 4" on 33" tires. My Driveshaft angle is 11 degrees and my pinion angle is 10 degrees. Optimum I have learned on this board is 1 to 2 degrees lower on the pinion angle in relation to the Driveshaft. Yours looks like the Driveshaft has more than 1 to 2 degrees differential. Lowering the T-Case would be the way to go if I am seeing this photo correctly.
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Old 05-09-2012, 10:04 PM   #10
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Originally Posted by wavebacktothetj View Post
Do you have vibrations?

You are still running a stock rear driveline so you want to try to get the t-case output and rear pinion angles the same, or close to. Based on the picture (bad angle but better than nothing), it seems you need to lower the rear pinion. But there's no telling what needs to be done until you measure with an angle finder. Measure both angles then get back to us with the results.




Read post #6 and follow the links.
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Old 06-19-2012, 07:44 PM   #11
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How does this look? The PO put the lift and sye in, as well as the new rear driveshaft. I do get some vibrations when starting, but that might be my highly warn mud tires. Thanks for the help
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Old 06-19-2012, 08:18 PM   #12
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Forgot to mention its on a 3.5" lift and 33" Pro Comp MT's Thanks again
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Old 06-19-2012, 11:08 PM   #13
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Can't tell by pictures but you can use an angle finder and find out what the angles are.

It does seem like it's set up correctly.
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Old 06-19-2012, 11:22 PM   #14
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Quote:
Originally Posted by Muddeprived
Can't tell by pictures but you can use an angle finder and find out what the angles are.

It does seem like it's set up correctly.
Alright, thanks for your time. Im just trying to slowly eliminate things until I find my rattle/shake

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