Drive Shaft Snapped on Freeway
Originally Posted by drumnatural
Stock front pinion angle is NOT good for an aftermarket driveshaft which is double cardan design. And it looks like that exhaust pipe has some dents as well.
if that's the case, your vibes were being caused by the shaft failing. if i could guess, the shaft had some kind of crack, stress fracture or poor weld that finally started to give out. total distruction was inevitable. hate to say it but, looks like you just got a bad shaft.
Originally Posted by drumnatural
The stock Rzeppa and aftermarket double cardan require different pinion angles which is easily seen via the front pumpkin
<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=382572"/>
<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=382573"/>
<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=382572"/>
<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=382573"/>
According to what I've been reading on rzeppa joints they areade to handle big angles....
Rear propshaft. A double offset (Rzeppa) CV joint is shown in the photograph below of a rear propshaft connection to the rear axle of a 2010 Jeep Wrangler Rubicon. This type of joint can handle larger operating angles (10 degrees) as compared to U-joints (5 degrees).
http://www.vibratesoftware.com/html_..._CV_Joints.htm
Rear propshaft. A double offset (Rzeppa) CV joint is shown in the photograph below of a rear propshaft connection to the rear axle of a 2010 Jeep Wrangler Rubicon. This type of joint can handle larger operating angles (10 degrees) as compared to U-joints (5 degrees).
http://www.vibratesoftware.com/html_..._CV_Joints.htm
Last edited by Jayrubicon; Oct 26, 2012 at 09:48 AM.
Originally Posted by maine07jk
Maybe it's just me, but it looks like from the pics, you have the fresh break and a crack that has some rust in it that may have been starting for some time. 



