Allstar ALL68611 Ring and Pinion Shim Kit for Ford Ring and pinion shim kit fits Ford 9 inch 'pig' differentials using lm102910/lm603011 side bearings (2.893 inch/3.062 inch/3.250 inch bearings) and 28 or 31-spline axles This is a complete kit containing all the hard-to-find individual parts for a quick, trouble-free installation Kit contains all the hard-to-find individual parts for a quick, trouble-free installation. Kits include: pinion seal, pinion depth shims, adjustable side (carrier) shims, crush sleeve (spacer), pinion nut, one ounce tube of silicone or gasket, gear marking compound and ring gear bolts Sold as one complete kit Backed by a 90-day limited factory warranty