You are buying 3x brand new universal joints and Center Support Bearing that fits:
TOYOTA TACOMA 1995-2004 4WD + 2WD
Rear Driveshaft Repair Replacement Kit:
Inside snap ring GUT21 Interchange with (5-1510X) Moog-387 universal joints
Toyota OEM refs: 04371-30020, 04371-30041, 04371-35020, 04371-35030,
04371-35051, 04371-60060, 04371-60070, 04371-60080, 04371-60100
Brand new universal joints - greasable x3
U-joints have grease zerk
Cap diameter: 1.142"
Distance between retaining ring: 2.047"
Center Bearings x 1
Internal Diameter: 1.181
Width: 0.511
Center of mounting hole to center of mounting hole: 5.750