Grant, I am interested in obtaining the rear retainer and the U-joint yoke assembly to convert to an open drive shaft setup, but I am doing this for a future upgrade. I plan to continue to use my current setup for a while until I am ready to proceed with the drive line upgrade. I did how ever buy a NOS 3/4-ton u-joint assembly when I came accross one for sale, not knowing if I was going to need it or not. I did install the NOS joint on my tranny, but the old one is in excellent condition if you would like to trade for the SM420 bearing retainer that you have. Do you have the u-joint yoke assembly that goes with it? Also the NOS u-joint assembly did not come with the speedo gear that is press fit onto the front u-joint flange, so I put the one from my old setup on the NOS flange.
Picture of 3/4-ton U-Joint assembly, before speedo gear removal:
http://community.webshots.com/photo/109000222/536892438FHUPRJ Jim
