steering shaft u-joints

Hi all, I hang around here every now and then. I've got an '88 Cherokee, stock suspension, 4.0 I6 and automatic 4wd.

Here's my question: Do any of you have a part number for just the u-joints in the steering shaft? I picked up a couple shafts at the local U-Pull-It and am going to try and rebuild at least one of them. I know I can get the borgeson units that mount on the existing shafts, but I just want the u-joint by itself.

Thanks in advance,
Rick