Bison Set Tru A2-8 Adapter Plate 7-874-208 for 20" Chucks Bison MSRP: Now: $1,116.77 Was: Bison Set Tru A2-8 Adapter Back Plate 7-874-208 for 20" Diameter Chuck Designed to mount on A1 and A2 American Standard Spindles Brand Bison Type Adapter Plate Style Set Tru Model Number 7-874-208 Application 20"... MSRP: Now: $1,116.77 Was: Qty in Cart: 0 Price: MSRP: Now: $1,116.77 Was: Subtotal: