Brand new steering shaft, still lots of play

[JMD]

Hi all,
Working on my 67 k10 with power steering, I recently installed LMC's "tilt column install kit" which includes a rag joint, intermediate shaft, and a U-joint for the end of the column. The DD intermediate shaft slips in to the rag joint just fine and everything looks nice. However, the slip joint has a severe amount of play (severe for a brand new part anyway) that will translate into a few degrees of slop at the steering wheel. I don't see how I could have installed it wrong, is there something I'm missing? Does the sleeve need to be crushed a bit or maybe filled with silicone?