New Reproduction Spindle Set For Disc Brakes. Exact copy of the 73-76 A Body and 73-74 E Body Spindles. Caliper adapters are the A body slider type for a 10.87″ rotor. Sold as set, Left And Right. Slider Type Caliper Brackets Included. This Spindle is used in all of our A, B, & E Body disc brake conversion kits.