This is a high quality Italian maker axle tripod bearing for 4-Spd Fiat X19s, 128 (all), and Yugo.
aka "Tripod joint" or "inner cv joint".
Two required per vehicle. One for each side left and right axle shaft.
Fiat X1/9 4-Spd (1974-78)
Fiat 128 All (1971-79)
Yugo 4-Spd (Not GVX 5-Spd)
New and unused.