This is a very high quality and very correct intermediate shaft kit. This is the center shaft and bearings in the transfer case that the main cluster gear rides on. This is a US Made part. This includes the shaft, needle bearings, thrust washers, and small parts. This is the largest of the three shafts and is normally found in the late CJ3B, CJ5 and CJ6 with the Dana 18 transfer case. NOTE: Remember there are three different sizes of these shafts so please measure yours before ordering.