Have the main gear shock disk towers off the airplane right now for shock disk replacement, including the bolt/bushing/nut that attaches the tower to the truss.  All the hardware is - not unexpectedly - showing some light surface corrosion.  We stripped, bead blasted and repainted the towers to address this.  I'd also like to replace the bolt, bushing, and nut. The nut is an AN365-918 which can be overnighted from Spruce or maybe even obtained locally.  But the bolt and bushing have Mooney-