My 72 gwag has a 20 with a 44 rear axle. From what I have been reading these do not go togeather because the 20 is for center dif aps. Is this true or did Jeep just not care that you have 2 driveline angles with this ap. I do have a small drive line vibration over 60mph and all joints and mounts are good.
![EEK!](http://forum.bjsoffroad.com/forum/core/images/smilies/eek.png)
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