D500R, D501R John Deere Fan Drive Gear And Pinion For D

John Deere Fan Drive Gear And Pinion. It Is A Matched Set. It Is Rust Pitted. It Is Not Worn To A Point Yet. It Does Not Have Any Chipped, Cracked Or Broken Teeth. It Is Part Number D500R, D501R. For D Up To Serial Number 68958