Poax - Duplex Seed Hopper Planter Drive Unit for Farmall Cub Tractors The horizontal mounting holes are

The horizontal mounting holes are 18-1/2" inches apart

3850 (when equipped with IH horizontal distributor)

350964R11 (Left Mounting Plate)

Case IH part numbers 520124R2 (right side bracket) and 520125R2 (left side bracket)

Referred to also as flat

Poax - Duplex Seed Hopper Planter Drive Unit for Farmall Cub Tractors The horizontal mounting holes arePlanter Drive Unit for IH Farmall and International Cub Tractors. Planter unit will fit POAX style seed hoppers. The duplex planter drive gear can be bolted onto the POAX drive unit. This would allow the International Duplex seed hopper to mount onto the drive unit. Click here for the duplex drive gear if needed. The last three photos are references showing the type of seed hopper which is needed and how the planter unit mounts.