John Deere Rotary Cutter Gearbox Replacement - Compatible with RC1060, RC1072, RC2060, RC2072 Models - Perfect for Agricultural Mowing and Land Maintenance

Replacement Rotary Cutter gearbox, 65hp (Field Proven Rating), 1-3/8" smooth input shaft with 1/2" shear bolt hole and circlip groove, 1.57" X 12 tapered spline output shaft and 1:1.47 speed up ratio. These are new gearboxes used on John Deere's Frontier Line Rotary Cutters Models RC1060, RC1072 and RC2060, RC2072. Featuring a 1-3/8" diameter smooth input shaft with a 1/2" shear bolt hole and a front circlip groove to lock the PTO onto the shaft, and a 12 spline 1.57" diameter output shaft with a new flanged castle nut. These are a 1:1.47 Speed up ratio gearbox typically used on 60" and 72" cut machines and are the older version of the gearbox for these mowers which holds up much better that the newer China version. These gearboxes can be used on many brands and models of machines. They share a similar mounting pattern and dimensions to the common 40hp gearbox just in a heavier package. **Please note this gearbox is shipped dry and will require 16 ounces of 80 weight gear oil or heavier!***** Gearbox Specifications: 1:1.47 Speed up ratio 1-3/8" Diameter smooth input shaft with 1/2" shear bolt hole and circlip groove 1.57" Diameter output shaft with 12 tapered splines Mounting holes 4-3/4" on center adjacent hole to adjacent hole and 6-3/4" on diagonal 6-7/16" from Bottom of mounting flange to center line of input shaft 6-15/16" from center of gearbox to end of input shaft High speed precision ball bearings