Recently I posted a minor soft rant about Quadratech not being willing to stand behind the Tom Woods product they sold. I always hit up the retailer for service after the sale first. While they were not impolite, they were also no help. You guys recommended I contact Tom Woods directly. I got in touch with Shawn from TW and good Lord! Night and day difference. Shawn looked at the video of the ds, denied the dodges QT attempted and told me TW would make it right. He does not think it is the drive shaft, he thinks it is the yoke from the SYE which was made by Advanced Adapters. He told me he is going to send me a new yoke first, because Tom Woods wants a happy Jeep and a happy customer. I will pay them for the yoke and shipping if it works and take it up with AA. I have no reason to believe they won't take care of me. It is service and dedication like Shawn provides that brings a smile to the face and justifies my buy American effort. Shawn said they would stand behind the DS if the vibe isn't fixed. All I can say, if you need a drive shaft, Tom Woods is your go to source, buy direct or from someone who values your business.