These are large size tuning gears, suitable for most basses that use larger gears. They are not direct Fender replacement but these make a really great tuning machine option for a new builder. A proven design with a similar appearance at a savings. With a slightly smaller modified footprint for a builder it allows in different headstock shaping that a larger footprint can hamper along with reduced weight. These tuners come complete with bushings and mounting screws.Important dimensions:Post Height = 1 1/4 inches (31.8mm)Post Diameter: 35/64 inch (13.9mm)Bushing Outer Diameter: 23/32 inch (18.35mm)Bushing Inner Diameter: 9/16 inch (14.25mm)Mounting plate hole locationsMounting Plate Length Top to Bottom = 1 5/8 inches (41.35mm)Top Mounting Holes = 59/64 inch apart ctr to ctr(23.3mm)Bottom Mounting Holes = 3/4 inch apart ctr to ctr (19mm)Distance from Top Mounting Hole to Bottom Mounting Hole = 1 21/64 inches ctr to ctr (33.6mm)String Post Location = 15/32 inch from horizon line of Bottom Mounting HolesString Post Location = 13/16 inch (20.5mm)from Horizon Line of Top Mounting Holes