I have gone over everything on my new Patrol. The drive shaft u-joint grease zerk just don't have enough clearance to get a grease gun fitting on.I even machined the barrell/end of my grease gun fitting smaller dia. still no-go. Suggestions? or just take the drive shaft loose from rear hub. Not a big deal-just curious what others do.I even tried an old slender slide pump type gun for lubing milling machines. Angle is just too tight.