M81 Complete Gearbox$688.00 Complete replacement gearbox for MyTana M81 cable machine. Available on backorder, please call for lead-time M81 Complete Gearbox quantity Add to cart Description Description Complete replacement gearbox for MyTana M81 cable machine. Part no. GEARBOX.COMP Related products Autofeed Drive Pin $10.00 – $14.00 Select options 7″ x 5/8″ Pulley $58.00 Add to cart Revolving Arm for M755 $97.00 Add to cart Cable Machine Belts $12.00 – $14.00 Select options Foot Pedal and Hose $17.00 – $72.00 Select options