Bigsby B7 Vibrato with Full Callaham Upgrade

Bigsby B7 vibrato with a full complement of Callaham upgrade parts installed, as detailed below. Designed for use on archtop electric guitars, such as Les Paul Standard, Deluxe, and Custom, and ES-335.Bigsby vibratos have a huge following, but they have some problems that were engineered-in during the '40s and '50s that are still present in the current products. Callaham Guitars makes upgrade parts that address these issues handily, and we sell these parts on our site. But some people don't want to modify a vibrato that they already own, they just want to buy one with all the parts pre-installed, ready to screw onto the guitar. We gotcha covered!We buy the Bigsby units from Fender, which is the current owner of the Bigsby brand. We buy the upgrade parts from Callaham. Then we disassemble and re-assemble the unit with the Callaham parts installed, and we include the original Bigsby parts with the unit.Callaham Stainless Steel String ShaftThe shaft on the Bigsby vibratos have roll pins p