rear cv driveshaft

[lunchbox]

ok, i was was getting real bad driveshaft vibrations so i shimmed the rear end 8 degrees im still getting bad vibrations when i decelerate. is it possible to have a rear cv drive shaft made that would work with my 208? or are their strength problems? i searched it and im still not sure. oh and i dont wana drop the t-case.

 

[loafer]

HAD makes one:

http://www.highangledriveline.com/



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[MNorby]

Call High Angle Driveline, they have a slip yoke CV

 

[lunchbox]

sick! now this would fix the vibes right? the pinion and d-shaft are strait im gettin vibes from the dshaft to t-case

 

[MNorby]

the key on a non CV shaft is to have both U-joints operating at the same angle. If you go CV you will need to rotate rear end so that the driveshaft is in a straight line to the pinion

 

[MNorby]

some reading for you http://pirate4x4.com/tech/billavista/PR-shaft/index.html

 

[lunchbox]

i put the 8 degree shims in so the driveshaft and the pinion are allighned ,(sorry i didnt word it right)

 

[MNorby]

are you running a CV now then?

 

[loafer]

This is one of the reasons you are getting vibes; both u-joints need to be at the same angle.

sick! now this would fix the vibes right? the pinion and d-shaft are strait im gettin vibes from the dshaft to t-case

 

[guz71]

If you have a NON cv shaft, then that is why you have vibes. On a non cv shaft, both of the u joints have to be operating at the same angle. With a cv shaft then your pinion has to be pointed straight a the t-case. If you have a lift you may need a cv shaft though. since it gets noticeably worse when you slow down, it sounds like you have some axle wrap too.

 

[MNorby]

If no CV needs to look like this:

If CV needs to look like this:

 

[obijuan]

i just did this tuesday. cleared right up, now i just have all the other noises and vibes to pinpoint! theres no driveline vibes at all anymore. mine were really bad. i got one used and had to retube it and a new weld yoke on the end, iverall it cost me $260. new they wanted $500

heres a good read:
http://coloradok5.com/forums/showthread.php?t=202539

 

[lunchbox]

im at school right now so ill take pics and post them up when i get home, for some reason i think ive screwed up my description, so i think pictures will help, sorry

 

[lunchbox]

the pinion u joint is good its the t-case

 

[loafer]

I think we understand your description perfectly fine; Both angles are wrong.

To run u-joints at each end of a shaft they have to turn through the same angle. This means you need to lower your t-case and/or rotate your pinion down (smaller pinion angle shim) to match the t-case joint angle. You can't run one joint at 0-deg (your pinion) and one at some other angle w/o vibration.

Your pinion angle is set up rigtht now the way it should be for a CV shaft.

Check out the picture below:

Notoce how the angles at each joint are the same? If the working angle are both the same, but exceed more than about 5-deg, you will also get vibration. If this is the case then it's time to consider a CV shaft. I would first try and match you pinion and t-case angles before spending money on the CV setup.



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[Mudstud]

x2 what Loafer said.