This is the Rare Parts kit I used in my '56 6100. At some point in time, someone changed one of the spindles out so the end caps were too small. I just used some frost plugs and ground them to fit. The other side fit perfectly with no problems. Doug H put me onto Rare Parts

Remember that the bushings must be reamed to fit the pins. I picked up a nice adjustable reamer on eBay that worked great 👠Best of luck hope this helps. Mark