This is a genuine AAM slip yoke for the 6L90 automatic transmission in a GM truck.
)- GM 6L90 STYLE TRANSMISSION SLIP YOKE
35/36 = INTERNAL SPLINE COUNT (36spline, 1-DEAD SPOT)
2.2″ = GROUND HUB / SEAL DIAMETER
1.562″ = INTERNAL SPLINE MAJOR DIAMETER
8 1/4″L = APPROX OVERALL LENGTH, CENTER OF UNIVERSAL JOINT TO END OF SPLINE