I recently installed a WH 2.5" lift and upon installing the rear driveshaft, I found it to be too short. I ordered the 6 degree shims and installed them today. The driveshaft does mount up now, but it is extended all the way out and there is play where my finger is in the picture; you can move it up and down at the slip joint. The driveshaft is not the original and has a sticker from a company out of Kentucky. My question: is the driveshaft usable in its current state or do I need to order a new one? Thanks, Joe