I am restoring a 1950 John Deere G tractor, basically from the ground up. I am wanting to replace the seals in the front steering pedestal. The pedestal has the roll a matic, and I have the pedestal off the tractor, laying in the shop floor. My question is , how do I get the top gear off so I can slide the shaft out the bottom? The gear is splined and it does not look like there is enough room to hook a puller on gear. I don't have the manual here with me as I write this, but it seems to make reference to a slide hammer, but the end of the shaft looks more like where a puller would set. Has anyone had any dealing with this? Thanks