Ultimate Dana 60 / Dana 70 Axle Pinion Driveshaft Flange 1310 / 1350 / 1410 Series 3.75" Female Pilot Square Pattern Spline Count_31 1981 - 1986 Chevrolet C20

1981 - 1986 Chevrolet C20

25" ring gear

Black with white print

Dana 60 axles with 35 spline shafts

Ultimate Dana 60 axles with the Eaton E-locker option

Ultimate Dana 60 / Dana 70 Axle Pinion Driveshaft Flange 1310 / 1350 / 1410 Series 3.75" Female Pilot Square Pattern Spline Count_31 1981 - 1986 Chevrolet C20Product Details: Dana 60 pinion flange 29 spline Female pilot 3. 750" pilot diameter 4. 750" bolt hole circle 8 bolt holes 4. 250" bolt circle (measured diagonally) 90 90 bolt pattern (square pattern) 3. 500" hole to hole 3. 500" hole to hole M12 1. 75 threads 1. 875" seal surface diameter Rubber dust boot Steel Compatible with flange yokes: 1310 series: Spicer TBD 1350 series: Spicer TBD 1410 series: Spicer 3 2 939 Spicer 3 2 1789 1480 series: Spicer