More of an aggravation but critical to the life of the spindle bearings. I just made mine easier and quicker to do. I'm sure I'm not the first but I thought I'd share it. Shown on a Scag, I've got the R/H and center grease fittings on the right side spindle cover and the L/H grease fitting on the L/H side, squirt and go, clean excess up later. Cost about $25.00 in parts.