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AAM Chevy Gm 1981+ Rear Differential Pinion End Yoke 30 Spline 1344 3R Series, 40029412Interchange #: 3R04-03
SPECS:
30 = internal spline count
1.312" = internal spline major diameter
1.940" = approx ground hub/sealing diameter
Designed for various 8.25" & 9.25" ifs front differentials
*Requires a 1344/3r universal joint with inside c-clip style snap rings ( 2.5"inside lockup span x 1 1/8"cap)