[cooperino]

Originally Posted by john hall

Me thinks you are going to use a LOT of grease to fill up the cavity in that wheel. Yes greasing them is a great idea. However, most older Cadets get 20-40 years on a set of quality bearings like the factory installed. Now if you are buying $5 bearings, well lets just say that ain't what IH made in the West Pullman plant. Anyway, just rambling. If you install grease fittings I'd do the ones with 1/4-28 thd or a drive in--I'm not really certain there is enough meat there to hold in either.

Initially, it will take a good amount of grease yes. After that a couple pumps per season will be enough. I don't foresee any issue with screwing in a zirk since the wheels being sold to replace this do have them installed and I doubt they are using thicker material for the wheels than they did when it was new.