Richmond Crush Sleeve
Richmond Gear crush sleeves are what you need for a controlled preload. You can depend on their steel collars to slip in between the bearings and keep the pressure on as you tighten down the pinion nut. If you're replacing a pinion seal or setting up your differential, use Richmond crush sleeves for preload control.
Richmond Gear Crush Sleeve Ford 7.5", 8.8", 9"